A Leading Manufacturer of IR thermometer & Gas detector. Monitoring Temperature and Gases. Digital Controller Smoke sensor Gas Detector Portable Infrared thermometer Multi-input indicator Fixed Infrared thermometer Wireless Indoor Air Quality Monitor Portable Gas Detector http://www.gasdna.com

COMPAY HISTORY 2015 - Acquired KR (Korean Register of Shipping Certification) - Developed Infrared Rays Thermometer for FILM (FILM-7.9) - Developed Infrared Rays Thermometer for Glass (GLASS-5.2) - Developed oxygen analyzer of irconia sensor (DA-60) - Developed IR-Brazing for Brazing(fire penetration) - Developed Gas Detector that can sense F3, SF6 2014 - Developed View type Infrared thermometer (IR-VIEW) - Developed on-contact subminiature Fixed Infrared thermometer (IR-compact,IR-22). - Developed on contact Temperature + Smoke Detector(TS-60). - Acquired CE-Mark for IR-Compact 2013 - Developed Two color Pyrometer(SS-0, 2IGA-0). - Participated in exhibition Sensor + Test 2013' in uremberg, Germany 2012 - Developed wireless indoor air quality monitor 'IAQ-700' - Registered patent for Infrared thermometer in Korea - Acquired CE-Mark for SD-50 - Participated in exhibition 'Industrial Automation Show' in Hannover, Germany and Shanghai, China 2011 - Selected as promising small and medium enterprises by Incheon city 2009 - Developed InGaAs Pyrometer - Developed Silicon Pyrometer 2008 - Developed TCD Hydrogen Detector first in Korea 2007 - Selected as Venture company - Acquired CE-Mark for DA-750 - Developed Thermopile Infrared thermometer first in Korea 2006 - Developed DIR Detector first in Korea 2005 - Acquired ISO9001,ISO14000 - Registered utility model patent and design for smoke senor GasDA Co.,Ltd is a professional and leading manufacturer of Fixed Infrared thermometers, Gas detectors and smoke detectors for factory automation and process control in industry. GasDA is focusing on developing and distributing more convenient and stable gas detectors and infrared thermometers. Based on the technologies and expertise accumulated Since 2003, we have positioned as Korea's only infrared thermometer manufacturer, and we are planning to expand into not only the domestic market but overseas markets. We develop and manufacture efficient and reliable products based on state-of-the-art technologies, and we do our best to be the world's leading company in the gas detector and Infrared thermometer field. GasDA promise customer's safety and product quality in accordance with the quality assurance K mark and ISO9001 quality system to maximize the customer's use value. C.E.O GasDna Co.,Ltd 고성운

co.,ltd A Leading Manufacturer of IR thermometer & Gas detector. Monitoring Temperature and Gases. COTETS Fixed Infrared Thermometer IR-80 Brazing-3.9 Glass-5.2 Film-7.9 IR-View 2IGA-0 SS-0 IR-80-H 4-IRman 6-IRman IR-22 IR-Compact IR-40 IR-20 Indicator DI-20 Infrared Thermometer Accessories Portable Infrared Thermometer PIR550 PIR1500 PIR2400 Smart Gas Detector DA-500 Series DA-0 Series 04 04 05 05 06 06 07 07 08 08 09 09 11 11 12 12 12 13 13 Oxygen analyzer DA-60 14 DA-750-O2 14 SMART Gas Detector DA-800 Series 15 DA-750 Series 15 DA-50 Series 16 DA-90- Series 16 Digital Controller of Gas Detector GMS-00 17 GMS-1500 17 GMS-2000 18 Indicator DA-90 18 Portable Gas Detector Clip 19 Gasman 19 GasPro 19 Tetra3 19 Target gas list 20 Smoke Sensor SD-50 21 Temperature & Smoke Sensor TS-60 21 TS-70 22 Wireless Indoor Air Quality Monitor IAQ-700 22 Certificate Status 23 Gas Detector Digital Controller Portable Gas Detector Smoke sensor Fixed Infrared thermometer Portable Infrared thermometer Multi-input indicator Wireless Indoor Air Quality Monitor

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. IR-80 Subminiature on-contact infrared thermometer Brazing-3.9 Brazing,welding * Optical Field of View (0:1) 5. 광학챠트 (DS 80:1) * Optical Field of View (60:1) DISTACE: SESOR TO OBJECT (I) SPOT DIA.* (MM) SPOT DIA.* (I) 20 0.2 6 500 40 59 79 1.0 0.7 0.5 D:S=80:1 13 19 25 00 1500 2000 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = 80:1 FAR FIELD D:S = 80:1 Product Specification 6. 방사율조정및레이저조정방법 Range Resolution Emissivity 레이저스위치 [ 방사율조정 ] 하우징뒷면의딥스위치를조절하여방사율조절할수있다. Sensor [ 레이저조준 ] 대상체의위치를조준하기위해서레이저스위치를동작시킨다. 스위치를누를때마다 O/OFF 된다. 레이저는 5분후자동으로꺼짐 Field of View (D:S) Wavelength Range Code umber 방사율조정 150 ~700 IR-80 0.1 0.~0.99 Within 50msec ±1%/F.S or 1 InGaAs, Silicon 0:1 500 ~1700 0.85~1.1 μm, 1~1.6 μm, 2.0 μm DC 20~24V (Max 50mA) Aluminum 3m, other IR-80- - - Temperature range 1 500 ~1500 2 800 ~2400 3 800~2200 (Silicon sensor) 4 150~700 (Extend InGaAs 2.6um) 5 75 ~400 output M DC 0~20mA V Voltage output DC 1~5V length 1 3M * Application : Aluminum, Chrome, Copper, Metal, Magnesium, Oxidenickel, Platinum, Gold, Silver, Oxided-Titanium, inc, Tin, Steel, Oxided- Steel, Oxided-Brass Product Specification Range Resolution Emissivity Field of View(D:S) Wavelength Range Code umber Brazing-3.9 300~1300 1 0.01~1.00 Within msec ±1%/F.S or 1 60:1 3.9 μm DC 20~24V (Max 200mA) SUS 3M, Brazing-3.9- - - 1 300~1300 2 300~1600 Length 1 3M Temperature range * Application : Brazing, Rivet forge, Ladle, Glass, Kiln, incinerator, etc,. 4

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. Glass-5.2 Glass Film-7.9 Film, Plastic Brazing-3.9 * Optical Field of View (60:1) MODE UP DOW ETER * Optical Field of View (60:1) Product Specification Product Specification Glass-5.2 Range 250~1300 Resolution 1 Emissivity 0.01~1.00 Within 0.01Msec ±1%/F.S or 1 Field of View(D:S) 60:1 Wavelength Range 5.2μm DC 20~30V (Max 200mA) AL 3M, Film-7.9 Brazing-3.9 Range 0~500 Resolution 1 Emissivity MODE UP 0.01~1.00 DOW ETER 0.01초이내 ±1%/F.S or 1 Field of View(D:S) 60:1 Wavelength Range 7.9μm DC 20~30V (Max 200mA) AL 3M, Code umber Glass-5.2- - - Code umber Film-7.9- - - Temperature Range 1 250~1300 2 250~1600 Length 1 3M Temperature Range 1 0~500 2 0~700 length 1 3M * Application : A sort of Glass * Application : Plastic, Film, etc,. 5

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. IR-View series View Type Pyrometer 2IGA-0 2-Color pyrometer * Optical Field of View (0:1) LED Display 렌즈 5 4.8 14.6 34.2 0 500 00 2000 View type enables users to focus on a measure object which cannot be pointed by laser because of strong light emission. Users can see through the measure object through the lens and focus more accurately. SPOT SIE [mm] MEASURIG DISTACE A[mm] Product Specification IR-View 1 color 2 color Range 800 ~2400 Resolution 1 Emissivity 0.1~0.99 Within 0.001sec ±1%/F.S or 1 0.75~1.25 Detection sensor Si or InGaAs or 2 Color-Si/Si Field of view(d:s) 200:1 Wave length Range umber 1 Color 1.0 μm, 1.1 μm DC 12~24V (Max 200mA) Aluminum 3m, other Temperature Range IR-View-1 0~600 IR-View-4 400~1500 IR-View-8 800~2400 IR-View- 00~3000 2 Color IR-VIEW-2IG-3 300~700 IR-VIEW-SS-8 800~2400 IR-VIEW-SS- 00~3000 * Application : Aluminium, Chrome, Copper, Magnesium, ickel Oxide, Platinum, Gold, Silver, Titanium Oxide, inc, Tin, Stee, Etc,. Product Specification 2IGA-0 1 color 2 color Range 400 ~1200 Resolution 1 Emissivity 0.1~0.99 0.75~1.25 Within 0.01sec ±1%/F.S or 1 Detection sensor Code umber 2 Color-InGaAs/InGaAs Field of view(d:s) 0:1 Wave length Range 1.0~1.5μm DC 12~24V (Max 200mA) SUS 3m, other 2IGA-0- - - Temperature range 1 300 ~700 2 400 ~1200 M DC 0~20mA V DC 1~5V length 1 3M * Application : Aluminium, Chrome, Copper, Magnesium, ickel Oxide, Platinum, Gold, Silver, Titanium Oxide, inc, Tin, Stee, Etc. 6

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. SS-0 2-Color pyrometer IR-80-H High temperature on-contact Infrared Thermometer * Optical Field of View (0:1) 5. 광학챠트 (DS 0:1) * Optical Field of View (80:1) 5. 광학챠트 (DS 80:1) DISTACE: SESOR TO OBJECT (I) 14.6 4.8 5 0 500 00 SPOT SIE [mm] MEASURIG DISTACE A[mm] 34.2 2000 SPOT DIA.* (MM) SPOT DIA.* (I) 20 40 59 79 1.0 0.7 0.5 0.2 D:S=80:1 6 13 19 25 500 00 1500 2000 DISTACE: SESOR TO OBJECT (MM) 6. 레이저조정방법 *FOCUS POIT D:S = 80:1 FAR FIELD D:S = 80:1 Product Specification [ ET 스위치 ] SS0 1 color 2 color Range 800 ~2400 Resolution 1 Emissivity 대상체의위치를조준하기위해서레이저스위치를동작시킨다. ET 스위치를누를때마다레이저 O/OFF 된다. 7. 제품구성및명칭 0.1~0.99 Within 0.01sec ±1%/F.S or 1 Detection sensor 2 Color-Si/Si Field of view(d:s) 0:1 Wave length Range 0.8~1.1 μm 0.75~1.25 DC 12~24V (Max 200mA) SUS 3m, other Product Specification 6. 방사율조정및레이저조정방법 IR-80-H Range 150~700 500~1700 Resolution 0.1 Emissivity 0.1~0.99 Within 0.1sec ±1%/F.S or 1 Field of view(d:s) 80:1 Wave length Range 1~1.6μm, 2.6μm, 0.85~1.1μm DC 16V~24V (Max 50mA) Aluninum 3m, other 레이저스위치 [ 방사율조정 ] 하우징뒷면의딥스위치를조절하여방사율조절할수있다. [ 레이저조준 ] 대상체의위치를조준하기위해서레이저스위치를동작시킨다. 스위치를누를때마다 O/OFF 된다. 레이저는 5분후자동으로꺼짐 방사율조정 Code umber SS-0- - - Code umber IR-80-H- - - Temperature range 1 800 ~1800 2 800 ~2400 M DC 0~20mA V Voltage DC 1~5V length 1 3M * Application : Aluminium, Chrome, Copper, Magnesium, ickel Oxide, Platinum, Gold, Silver, Titanium Oxide, inc, Tin, Stee, Etc,. Temperature range 1 150 ~700 2 500 ~1800 3 800 ~2200 M DC 0~20mA V Voltage Ourput DC 1~5V length 1 3M * Application : Aluminium, Chrome, Copper, Magnesium, ickel Oxide, Platinum, Gold, Silver, Titanium Oxide, inc, Tin, Stee, Etc,. 7

4-IRMA MODE UP DOW ETER 6-IRMA MODE UP DOW ETER Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. 4-IRman on-contact Infrared Thermometer 6-IRman on-contact Infrared Thermometer 6. 결선및단자설명 o. 인쇄명용도 1 24V 전원 24VDC(+) 2 0V 전원 0V(-) 3 Out + 4 Out - 4-20mA아날로그출력 (+) 5 TX RS485 TX+ 4-20mA아날로그출력 (-) 6 RX RS485 TX- 7 ALARM1 RELAY COTACT 8 9 AL1[O/COM] ALARM2 RELAY COTACT * Optical Field of View (:1) 7. 광학챠트 (DS :1) AL2[O/COM] * Optical Field of View (:1) DISTACE: SESOR TO OBJECT (I) SPOT DIA.* (MM) SPOT DIA.* (I) DISTACE: SESOR TO OBJECT (I) 4 20 40 4.0 2.0 1.0 0.4 D:S=:1 25 50 0 0 250 500 00 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = :1 FAR FIELD D:S = :1 SPOT DIA.* (MM) SPOT DIA.* (I) 4 20 40 4.0 4-IRMA 2.0 1.0 0.4 D:S=:1 MODE UP DOW ETER 25 50 0 0 250 500 00 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = :1 FAR FIELD D:S = :1 4-IRMA MODE Product Specification Product Specification 4-IRman Range -60~400 Resolution 0.1 Emissivity 0.~1.00 Within 0msec ±1%/F.S or 1 Field of view(d:s) :1 Wave length Range 8~14μm DC 20~24V (Max 200mA) SUS 3m, other 6-IRman Range -20 ~600 Resolution 0.1 Emissivity 0.~0.99 Within 0msec ±1%/F.S or 1 Detection sensor Thermopile Field of view(d:s) :1 Wave length Range 8~14μm DC 20~24V (Max 200mA) SUS 3m, other Code umber 4-IRman- - - Temperature range 1-20~400 2 0~400 length 1 3M Code umber 6-IRman- - - Temperature range 1-20~600 2 0~600 M DC 0-20mA length 1 3M * Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt, Ceramics, Food, Etc,. * Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt, Ceramics, Food, Etc,. 8

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. IR-22 Subminiature on-contact Infrared Thermometer IR-Compact Subminiature on-contact Infrared Thermometer * Optical Field of View (:1) * Optical Field of View (8:1) DISTACE: SESOR TO OBJECT (I) DISTACE: SESOR TO OBJECT (I) ETER SPOT DIA.* (MM) SPOT DIA.* (I) 4 20 40 4.0 2.0 1.0 0.4 D:S=:1 25 50 0 0 250 500 00 DISTACE: SESOR TO OBJECT (MM) SPOT DIA.* (MM) SPOT DIA.* (I) 4 0.5 12.5 0 20 40 4.9 2.5 1.2 D:S=8:1 31.3 62.5 125 250 500 00 *FOCUS POIT D:S = :1 FAR FIELD D:S = :1 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = 8:1 FAR FIELD D:S = 8:1 Product Specification Code umber IR-22 Range -60~380 Resolution 0.1 Emissivity 0.95 fixed (Changeable when using PC software program) Within 0msec ±1%/F.S or 1 Ambient temperature -20~70 Field of View (D:S) :1 Wavelength Range Input power 8~14 μm DC 12~24V (Max 50mA) SUS 3m, other IR-22- - - Temperature range 1 0~200 2 0~350 3-50~350 M DC 0~20mA V Voltage output DC 1~5V length 1 1M *Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt Concrete, Oxidized Steel, Asphalt, Ceramics, Food, Etc,. Product Specification IR-Compact Range -60~380 Resolution 0.1 Emissivity 0.~0.99 Within 0msec ±1%/F.S or 1 Ambient temperature -30~85 Field of View (D:S) 8:1 Wavelength Range 8~14μm Wavelength Range DC 12~24V (Max 200mA) SUS Waterproof IP65, EMA 4 3m, other Code umber IR-Compact- - - D:S 1 8:1 2 12:1 (Option) Temperature Range 1 0~350 2-60~350 Code D length 1 1M *Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt Concrete, Oxidized Steel, Asphalt, Ceramics, Food, Etc,. 9

Fixed Infrared Thermometer *OEM Service is available, Please contact us for further information. IR-40 on-contact Infrared Thermometer IR-20 on-contact Infrared Thermometer View type Pyromete * Optical Field of View (40:1) * Optical Field of View (:1) DISTACE: SESOR TO OBJECT (I) DISTACE: SESOR TO OBJECT (I) SPOT DIA.* (MM) SPOT DIA.* (I) 20 40 59 79 2.0 1.5 1.0 0.5 D:S=40:1 13 25 38 50 500 00 1500 2000 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = 40:1 FAR FIELD D:S = 40:1 SPOT DIA.* (MM) SPOT DIA.* (I) 4 20 40 4.0 2.0 1.0 0.4 D:S=:1 25 50 0 0 250 500 00 DISTACE: SESOR TO OBJECT (MM) *FOCUS POIT D:S = :1 FAR FIELD D:S = :1 Product Specification IR-40 Range 0 ~1,000 Resolution 0.1 Emissivity 0.1~0.99 Within 0msec ±1%/F.S or 1 Detection Sensor Thermopile Field of View (D:S) 40:1 Wavelength Range 8~14μm DC 20~24V (Max 50mA) Aluminum 3m, other Product Specification IR-20 Range 0 ~400 Resolution 0.1 Emissivity 0.95(Fixed) Within 0msec ±1%/F.S or 1 Waterproof IP65, EMA 4 Field of View (D:S) :1 Wavelength Range 8~14μm DC 20~24V (Max 50mA) Aluminum 3m, other Code umber IR-40- - - Code umber IR-20- - - Temperature range 1 0 ~00 2 0 ~700 3-20 ~00 M DC 0~20mA V Voltage output DC 1~5V length 1 3M * Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt Concrete, Oxidized Steel, Asphalt, Ceramics, Food, Etc,. Temperature range 1 0 ~200 2 0 ~400 V Voltage outputdc 1~5V length 1 3M * Application : Plastic, Lumber, Rubber, Glass, Paper, Asphalt Concrete, Oxidized Steel, Asphalt, Ceramics, Food, Etc,. 8

Indicator / Infrared Thermometer Accessories DI-20 Multi Input Indicator -compact type DI-20 DI-20 Input Type (User-Selectable Multiple Input) TC (B, R, S, K, E, J, T, ), RTD (DI PT1, DI PT(0.1), JIS PT) DC (mv, V, ma) Communication Specification (Option) Kind : RS232, RS422, RS485, ID (Address) setup : 1 ~ 127 Signaling speed : 4800 bps ~ 57600 bps ±0.2% / Signal : ±0.25% (Full scale) Signal (Option) Electrical insulation Current : DC4 ~ 20 ma / 600 Ω Dimensions and Display Cycle Input Resistance 0 ms (mv, Volt, ma type), 200 ms (TC, TRD type) Volt type is 400 kω, ma type is 250 Ω, 1 MΩ is for other type Use Environment Power Consumption Storage Temperature/Humidity : -20 ~70 / 5%~95% Operating Temperature/Humidity : -5 ~60 / %~90% 3.5 W (Max.) Signal Source Resistance PT0 Ω, 30 Ω/Line, types 300 Ω / Line AC 85V~264V MRR / CMRR More than 50 db / More than 140 db Insulation resistance FG input, FG power, power input, More than 0 MΩ (500 VDC) Alarm (Option) Channels : 2 or 4 alarms, Contact point : 1a (ormal, Open) Contact capacity : AC 250 V / 5 A, DC 30 V / 5 A Built-in Sensor Power DC 24 V / 30 ma / less than ±0.5 % Weight About 350g Installation Method Panel-mounting type Size (mm) 96 (W) x 48 (H) x 0 (D) mm Infrared Thermometer Accessories Options Airpurge Water-cooling jacket Laser pointer Bracket RS485 to RS232 Converter 11

Portable Infrared Thermometer *OEM Service is available, Please contact us for further information. PIR-550 Portable Infrared Thermometer PIR550 Range -60 ~550 Wavelength Range 8~14 μm Operating Temperature 0~50 2 or ±2% of measured value Emissivity 0.1~1.0 within 1 Sec. Field of View (D:S) 12:1 Battery life Dimensions Weight min 14 hours continuous use 143.9*116.73*42.78mm 180g(including battery) PIR-1500 Portable Infrared Thermometer PIR1500 Range -35 ~1500 Wavelength Range 8~14 μm Operating Temperature 0~50 2 or ±2% of measured value Emissivity 0.1~1.0 within 1 Sec. Field of View (D:S) 75:1 Memory Battery life Dimensions Weight Detailed 24 Memories with Temperature & Emissivity min 14 hours continuous use (without Laser and Back Light) 204.14*179.19*58.40mm 355g(including battery) PIR-2400 Portable Infrared Thermometer PIR-2400 Range -200 ~2400 Wavelength Range 1~2 μm Operating Temperature 0~50 2 or ±2% of measured value Emissivity 0.1~1.0 within 1 Sec. Field of View (D:S) 0:1 Memory Battery life Dimensions Weight Detailed 24 Memories with Temperature & Emissivity min 14 hours continuous use (without Laser and Back Light) 233.8*207.5*60.6mm 550g(including battery) 12

MO. 24v o r g ww. w DA-500 Series Indicator type, Explosion proof DA-0 Series on-indicator type, Explosion proof 2. 사양 1) Type: Shield 2) 전송거리별케이블사양 전송거리 0 ~ 500 M 501 ~ 1,500 M 1,500 M 이상 [ Dimension ] 전선규격 0.75sq 1.25sq 2.0sq 1. 평면도 2. 측면도 H2 0 %LEL 00 DA DA D - 01- A S m S E X e n E 0 p a II C T 5 M / G - H 2 D E. S o E r X e n E 0 p a g II C ww. T 5 w M / G - H 2 D SMART Gas Detector 2. 사양 1) Type: Shield 2) 전송거리별케이블사양 전송거리 0 ~ 500 M 501 ~ 1,500 M 1,500 M 이상 전선규격 0.75sq 1.25sq 2.0sq [ Dimension ] 1. 평면도 00-1 DA DA D - 01- X D 01 G A S DEL MO m 24v a.c ow sd R O CT ET E -1 DEL 01 X D G ET a.c ow sd R O CT 2. 측면도 9 DA-500 DA-0 Detection Principle Catalytic combustion, on-dispersive infrared (DIR), TCD, Electro-chemical Detection Principle Catalytic combustion, TCD, Electro-chemical Detection Method Target Gas Detection Range Diffusion type Combustible gas, Toxic gas 0~0% LEL, 0~,000 PPM, 0~0% VOL Within 20sec, 90%/full scale Detection Method Target Gas Detection Range 9 Diffusion type Combustible gas, Toxic gas 0~0% LEL, 0~,000 PPM, 0~0% VOL Display Checking Function Select ion Function External ±2%/full scale Back Light LCD(2 Line - 8 Characters) Sensor fault indication on LCD (SE -err), 2 ma Calibration concentration, Detection range setting DC 20 ~ 30V 4mA~20mA / Full scale - 2.5Km Transmission Checking Function External Within 20sec, 90%/full scale ±2%/full scale Sensor fault indication on FD (S -err), 2 ma DC 20 ~ 30V 4mA~20mA / Full scale - 2.5Km Transmission Operating Temperature/ Humidity -30 ~60, 5~95% RH (on-condensing) Operating Temperature/ Humidity -30 ~60, 5~95% RH (on-condensing) Signal CVVS & CVVSB 1.25sq x 3 Wire - Shield Type Signal CVVS & CVVSB 1.25sq x 3 Wire - Shield Type Conduit 1/2" or 3/4" PF, PT Conduit 1/2" or 3/4" PF, PT Installation Method Explosion-Proof Approval Relay contacts Wall or Pipe Station Cast Aluminum Alloy Ex d IIC T5 - KGS 2 step-relay Contact (High/Low), RS-485 Installation Method Explosion-Proof Approval Wall or Pipe Station Cast Aluminum Alloy Ex d IIC T5 - KGS 13

RESET UP TEST POWER FAULT AL1 AL2 MODE DOW ET UP MOTOR DOWM SMART Oxygen Analyzer DA-60 Indicator type, Smart oxygen analyzer DA-750-O2 Suction Type Smart oxygen analyzer H3 0.0 F L O W PPM DA-60 DA-750-O2 Detection Principle zirconia O2 sensor Detection Principle Electrochemical, zirconia O2 sensor Detection Method Diffusion type Detection Method Suction type Gas Suction 6øtube Target gas O2 Detection Range 1~00ppm,0~000ppm,0~25% VOL Detection Range 0~00ppm, 1ppm~25% VOL (T90) Within sec Within sec Warmming up time Approx. 3 min ±3%/full scale ±1%/full scale Signal CVVS & CVVSB 1.25sq X 3Wire - Shield type Display 4 Digit Display DC 20 ~ 30V Selection Function Calibration concentration, Detection-range setting DC 20 ~ 30V External Operating Temperature / Humidity 4mA~20mA / Full scale - 2.5Km Transmission -20 ~50, 5~95% RH (on-condensing) External Operating Temperature / Humidity 4mA~20mA / Full scale - 2.5Km Transmission -20 ~50, 5~95% RH (on-condensing) Selection Function Installation Method Calibration concentration, Detection-range setting Wall or Pipe Station Installation Method Wall or Pipe Station 2 Step-Relay Contact (ALARM-1/ALARM-2) Cast Aluminum Alloy Relay contacts RS-485 14

RESET UP TEST POWER FAULT AL1 AL2 MODE DOW ET UP MOTOR DOWM SMART Gas Detector DA-800 Series Suction type Explosion proof DA-750 Series Suction type Smart Gas detector 0.0 F L O H3 PPM W DA-800 DA-750 Detection Principle Catalytic, DIR, TCD, Electro-chemical,PID Detection Principle Catalytic, DIR, Electro-chemical,PID Detection Method Suction type Detection Method Suction type Target Gas Combustible gas, Toxic gas, O2, VOC Target Gas Combustible gas, Toxic gas, O2, VOC Detection Range Induced Vacuum Flow Checking Function Select ion Function External Operating Temperature /Humidity Signal Conduit Installation Method Explosion-Proof Approval 0~0% LEL, 0~0% VOL, 0~,000 PPM Within 20sec, 90%/full scale ±2%/full scale 0.2 l/min ~ 2.5 l/min Auto - Calibration With Magnetic Switch Calibration concentration, Detection-range setting DC 20 ~ 30V 4mA~20mA / Full scale - 2.5Km Transmission -20 ~60, 5%~95% RH (on-condensing) CVVS & CVVSB 1.25 sq x 3Wire shielded type 1/2 or 3/4 PF, PT Wall Mounting Type Cast Aluminum Alloy Ex d IIB+H2 T6- Korea Gas Safety Corporation (KGS) Induced Vacuum Flow External DC 20V~30V (24 V DC ormal) / 250mA (Max.) 0.2 l/min ~ 2.5 l/min ±2%/full scale 4mA~20mA DC /F.S, RS-485 Gas Leak Data Storage Gas leak records: 4,000 Display Operating Display Alarm Value Setting Alarm Delay Time Relay s Operating Temperature /Humidity Installation Method Signal Graphic LCD (128 dots*64 dots)korean/english PPM, % LEL, %VOL (Adjustable by user programming) 4 LEDs (Power, 2 Alarms, 1 Trouble) AL1, AL2 2 Stage (Adjustable by user programming by user) 0 ~99sec (Adjustable by user programming by user) 250V 0.6A / 3 SPDT Relay-Contact (2 Alarm, 1 Trouble) -20 ~ 50, 5% ~ 95% RH (on-condensing) Wall Mounting Type CVVS & CVVSB 1.25 sq x 3 wire - shielded type Relay contacts 2 Step Relay-Contact (High/Low), RS-485 Gas Flow Distance Less than 0m Suction Line Conduit Pipe 1/4 Tube Gas Inlet Tube 6Ø Tube 15

PW Alarm AL-1 AL-2 Gas Detector DA-90- RESET MODE UP DOW ETER SMART Gas Detector DA-50 Series Indicator type Smart Gas Detector DA-90- Series Waterproof type Smart Gas Detector Product Specification Product Specification DA-50 DA-90- Detection Principle Detection Method Target Gas Catalytic, Electrochemical, on-dispersiveinfrared (DIR), Photo-ionization (PID) Diffusion type Combustible gas, Toxic gas ±2%/full scale DC 20V~30V (24V DC ormal) / 0mA (Max.) Detection Principle Detection Principle Response time Target Gas Selectable function Electrochemical Diffusion type Within sec 90%/Full Scale CO (0~00ppm) ±2%/Full Scale Calibration density. Detection range setting External Relay s 4mA~20mA, 2Step Relay (AL1, AL2) RS-485 250 V 0.6 A / 2-SPST Relay-Contact (2 Alarms) Input power power AC 220V/60Hz 4~20mA/Full Scale 2.5Km Transmission Low alarm AL1 LED(RED) Display Operating Display Signal Operating Temperature / Humidity Installation Method LCD(8Characters*2Line) With Back-light %,PPM,PPb 4 LEDs (Power, 2 Alarms, 2-RS485 TX, RX) Cvvs &Cvvsb 1.25 sq *3Wire shielded type -20 ~ 50, 5% ~ 90% RH (on-condensing) Wall Mounting Type Alarm Alarm method Operation temperature / Humidity Alarm Off High alarm AL2 LED(RED) Light bar B LED(RED) Sight Light bar Hearing Buzzer (90 db /1m) -20 ~60, 5~95% RH (on-condensing) Manual and automatic release Housing Sensor calibration Polycarbonate Calibration with switch Alarm output 2 step (AL1/AL2) alarm relay contact, RS-485 (option) User programmable Calibration density, detection range Installation Method Wall Mounting Type 16

Digital Controller of Gas Detector GMS-00 Single- Channel Digital controller of Gas detector GMS-1500 4-Channel Digital controller of Gas detector Product Specification GMS-00 Product Specification GMS-1500 Structure Single type / 1 Circuit Structure Multiple-type (4 Connection detectors)/ 4 Circuits Input Signal AC 230V / 60Hz 4~20 ma DC / Full scale Power DC 24V(250 ma ) Signal Signal Resolution Display Alarm Display Alarm Type Alarm Density Alarm Delay Time Alarm Off Alarm 4~20 ma DC / Full scale A/D Converter - ±20000 D/A Converter - 12bit %LEL (Combustible), % (Oxygen), PPM (Toxic) Low alarm AL1 LED (Red) High alarm AL2 LED (Red) Fault alarm Fault LED (Yellow) Visual : LED flickering Auditory : Buzzer sound (More than 80 db ) AL1 / AL2 2 Level alarm density (Adjustable by user programming by user) 0 sec ~ 99 sec (Adjustable by user programming by user) Manual, Automatic return 2 단 (AL1 / AL2) Relay-Contact Operating Temperature -20 ~ 50 Operating Humidity Installation Method 5% ~ 95% RH (on-condensing) Poly Carbonate (P.C) Wall Mounting Input Signal AC 220 V / 60 Hz, AC 1 V / 60 Hz (Option) 4 Channels (4~20 ma / FS) Power DC 24V (250 ma ) Signal Display Alarm Display Alarm Type Alarm Value Setting Alarm Delay Time Alarm Off Alarm 4 Channels (4~20 ma / FS) LCD Display PPM, % LEL, %, PPB (Adjustable by user programming by user) Low alarm AL1 LED (Red) High alarm AL2 LED (Red) Fault alarm Fault LED (Yellow) Visual : LED Flickering Auditory : Buzzer sound (More than 80 db ) AL1/AL2 2 Level alarm (Adjustable by user programming by user) 0 ~ 99 sec (Adjustable by user programming by user) Manual, Automatic return 250 V 5 A / 11-SPST Relay-Contact ( Alarms, 1 Fault) Operating Temperature - ~ 50 Operating Humidity Installation Method 5 ~ 95%RH (on-condensing) Poly Carbonate (P.C) Wall Mounting Option Light Bar Option Light Bar 17

Digital Controller of Gas Detector / Indicator GMS-2000 Multi-Channel Digital controller of Gas detector DA-90 Large Size Indicator [ 외형치수 ] GAS ALARM COTROL SYSTEM ( 주 ) 가스디엔에이 Product Specification Control Structure Extension Structure Input Signal Alarm unit : Receiving unit = 1:1 ~ 64 GMS-2000 Receiving unit : detector = 1:1 Slide Card Type AC 230V / 60Hz Power DC 24V (250 ma ) Input Signal Power & Alarm Unit 4~20 ma DC / F.S Receiving Unit 9 page Product Specification DA-90 Structure Single type / 1 Circuit Display Large size FD 5 DIGIT(2.3 Inch) AC 230V/60Hz Input signal 4-20mA DC/F.S Power DC 24V(750mA ) Signal 4 ~ 20 ma DC / F.S, RS-485(Option) Signal 4-20 ma DC/F.S Display Power Display Alarm Display Alarm Type Alarm Density % LEL (Combustible), % (Oxygen), PPM (Toxic) Alarm LED (Red) Alarm LED flickering Buzzer sound (More than 90 db ) Power LED (Green) Low alarm AL1 LED (Red) High alarm AL2 LED (Red) Fault alarm - Fault LED (Yellow) Visual : Applicable alarm LED Flickering High / Low - 2Level alarm density (Adjustable by user programming by user) Alarm Display Alarm Type Alarm Value Setting Low alarm AL1 LED (Red) High alarm AL2 LED (Red) Fault alarm - Fault LED (Yellow) Visual : LED Flickering Auditory : Buzzer sound (More than 80 db ) AL1/AL2 2 Level alarm (Adjustable by user programming by user) Alarm Delay Time 0 ~ 99 초 (Adjustable by user programming by user) Alarm Delay Time 0 sec ~ 99 sec (Adjustable by user programming by user) Alarm Off Manual, Automatic return Alarm Off Manual, Automatic return Alarm SPDT Relay output for High / Low 2Level alarm SPDT Relay output for Fault alarm Alarm 2step(AL-1/AL-2) Alarm RELAY COTACT, RS-485(Option) Operating Temperature / Humidity Option -20 ~50, 5~95%RH (on-condensing) 19 (3U) Unit : Aluminum / System enclosure: Metal case RS-485 Operating Temperature /Humidity Installation Method - ~ 60, 5 ~ 95%RH (on-condensing) Wall Mounting Option Light Bar 18

Portable Gas Detector Clip Gas man Gas pro Tetra3 single gas monitor multi gas monitor Maintenance Free Single Gas Monitor Easy to use, event logging detector with display for H2S, CO or O2. Target Gas Detection Single Gas 19 Multi Gas Clip Gas man Gas pro Tetra3 Oxygen(O 2 ) Hydrogen sulphide (H 2 S) Cafbon monoxide (CO) Carbon dioxide IR Cell (CO 2 ) S S A wide range of hydrocarbons available (CAT LEL) IR LEL Ammonia (H 3 ) Chlorine dioxide (CLO 2 ) Chlorine (CL 2 ) Sulphur dioxide (SO 2 ) Hydrogen (H 2 ) itric oxide (O) Phosgene (COCL 2 ) Fluorine (F 2 ) Phosphine (PH 3 ) Hydrogen cyanide (HC) Hydrogen fluoride (HF) Ethylene oxide (ETO) itrogen dioxide (O 2 ) Ozone (O 3 ) VOC gases (PID) STEL / TWA alarms Optional internal pumped MED approval Event logging Data logging Single button operation Software for data management s=safe area applictions Maintenance free Intrinsically Safe Personal Single Gas Monitor Advanced features & sensor options suit it to chemical plants (exotic gases), hospitality (CO2) & steel mills (special CO sensor). on Rechargeable Five-gas Monitor with Confined Space Functionality For oil & gas, water, construction & manufacturing CSE, features up to 5 gases, internal pump option & class leading size. Top Display Personal Multigas Monitor Widely used for confined space entry & recently strengthened by new gas options for the water, hospitality & steel industries. Rechargeable

Combustible Gas Detection Target Gas Molecular Formula Target Gas Molecular Formula Acetaldehyde CH 3 CHO Iso-butane i-c 4 H Acetic acid CH 3 COOH Iso-propyl alcohol (CH 3 ) 2 CHOH Acetone CH 3 COOH 3 Methane CH 4 Acetylene C 2 H 2 Methyl alcohol CH 4 O Benzene C 6 H 6 Methyl bromide CH 3 Br Butane C 4 H aphthalene C H 8 Chloro benzene C 6 H 5 Cl Octane CH 3 (CH 2 ) 6 CH 3 Chloro benzene C 6 H 12 Pentane CH 3 CH 2 CH 2 CH 3 Di-Methylethar CH 3 OCH 3 Phenol C 6 H 5 OH Ethane C 2 H 6 Propane C 3 H 8 Ethanol CH 3 CH 2 OH Propylene C 3 H 6 Ethylene C 2 H 4 Propylene oxide (PO) C 3 H 6 O Ethylene glycol (EG) HOCH 2 CH 2 OH Thinners Ethylene oxide (EO) C 2 H 4 O Toluene C 7 H 8 Formic acid CH 2 O 2 Vinyl acetate (VAM) CH 2 =CHOCOCH 3 Gasoline Vinyl chloride CH 2 =CHCl Heptane CH 3 (CH 2 ) 5 CH 3 Xylene C 8 H =C 6 H 4 [CH 3 ] 2 For other gases, Please inquire with us. Target Gas Detection Target Gas Molecular Formula Range DA-750 DA-50 DA-500 DA-0 Ammonia H 3 0~0 ppm Arsine AsH 3 0~1.00 ppm Boron Trichloride BCI 3 0~15.0 ppm BF 3 0~.0 ppm Bromine Br 2 0~1.00 ppm Carbon Dioxide CO 2 0~5.00%vol Carbon Monoxide CO 0~300 ppm Chlorine CI 2 0~.0 ppm Chlorine Dioxide CLO 2 0~2.00 ppm CLF 3 0~2.00 ppm Diborane B 2 H 6 0~1.00 ppm DiboraneDichlorosilane H 2 SiCI 2 0~.0 ppm CH 2 F 2 0~0 ppm Disilane Si 2 H 2 0~.0 ppm Flourine F 2 0~.0 ppm Germane GeH 4 0~1.00 ppm C 4 F 6 0~50.0 ppm Hydrogen H 2 0~0%VOL Hydrogen(% LEL) H 2 0~0%LEL Hydrogen(ppm) H 2 0~2000 ppm Hydrogen Bromide HBr 0~.0 ppm Hydrocarbon HC 0~0%LEL Hydrogen Chloride HCI 0~.0 ppm Hydrogen Cyanide HC 0~50.0 ppm Hydrogen Fluoride HF 0~.0 ppm Hydrogen peroxide H 2 O 2 0~0 ppm Hydrogen Sulphide H 2 S 0~.0 ppm Hydrogen Sulphide(High Level) H 2 S 0~0 ppm Methane(%LEL) CH 4 0~0%LEL Methyl Fluoride CH 3 F 0~60 ppm methylene chloride CH 2 CL 2 0~5000 ppm itrogen Dioxide O 2 0~20.0 ppm itric Oxide O 0~0 ppm itrogen Trifuoride F 3 0~30.0 ppm C 5 F 8 0~40 ppm O 2 0~25%vol Ozone O 3 0~1.00 ppm Phosphine PH 3 0~1.00 ppm Phosphorous Oxychloride POCI 3 0~1.00 ppm Silane SiH 4 0~20.0 ppm Sulfur Dioxide SO 2 0~20.0 ppm SF 6 0~8000 ppm SF 4 0~.0 ppm Tetra Ethyl Ortho Sillicate TEOS 0~40 ppm WF 6 0~12.0 ppm Volatile Orgenic Compounds VOCs 0~00 ppm For other gases, Please inquire with us. 20

Smoke Sensor SD-50 Smoke Sensor TS-60 Temperature & Smoke Sensor Temperature detection 35 Smoke detection Product Specification SD-50 Product Specification TS-60_ on contact Infrared thermometer Detection Principle Ionizations Smoke Chamber Measuring Range Device -70 ~ 380 (Alarm value setting by DIP switch) Thermopile (on contact Infrared measurement) Detection Method Diffusion type Optical Resolution Optical Spectrum 35 8~14 μm External Within 3sec A contact (DC 30 V 1 A), B contact Response time 0.3 sec Relay Relay A (DC30V 1A) TS-60_ Smoke sensor DC 22V~26V Detection Principle Ionizations Smoke Chamber Detection Method Diffusion Operating Current 25 ma. Maximum Response time Within 3sec Relay Relay A (DC30V 1A) Acetal Input power DC 22V~26V Currency consumption 50 ma. Maximum Operating Temperature / Humidity -20 ~65 / 0~95% RH (on-condensing) Operation temperature / humidity -20 ~ 60 / 0 ~ 95% RH (on-condensing) Process Digital Process Process Digital Process * Temperature setting in factory : 50 * Smoke density : 1% 21

Temperature & Smoke Sensor / Wireless Indoor Air Quality Monitor TS-70 Temperature & Smoke Sensor IAQ-700 Wireless Indoor Air Quality Monitor Temperature detection 35 Smoke detection IAQ-700 Product Specification TS-70_ on contact Infrared thermometer Measuring range -70 ~ 350 Device Optical Resolution Optical Spectrum Response time Relay Detection Principle Detection Method Response time Thermopile (on contact Infrared measurement) 35 8~14 μm 0.3 sec 4-20mA TS-70_ Smoke sensor Ionizations Smoke Chamber Diffusion Within 3 sec Relay Relay A (DC30V 1A) Input power Currency consumption Operation temperature / humidity Process * Temperature setting in factory : 50 * Smoke density : 1% DC 22V~26V 50 ma. Maximum -20 ~ 60 / 0 ~ 95% RH (on-condensing) Digital Process Product Specification VOC CO2 DUST Temperature Humidity Measurement range Resolution Response time Measurement range Resolution Response time Measurement range Resolution Response time IAQ-700 0 ~ 1,000 ppm 1 ppm ±3%/Full Scale Within sec (T90) 0 ~,000 ppm ppm ±5%/Full Scale Within 30 sec (T90) 0 ~ 500 μg / m3 1 μg / m3 ±3%/Full Scale Within sec (T90) Measurement range -25 ~ 60 Resolution 0.2 Response time Measurement range Response time Input power Density Display Alarm Display Alarm Resolution Response time Operation Temperature/ Humidity ±2%/Full Scale Within sec (T90) 0~0%RH 0.4% RH ±3%/Full Scale Within 15 sec (T90) igbee DC 9V ~ DC24V 320 240 DOT Graphic LCD Display AL-1,AL-2 LED(RED) 2 Step RELAY COTACT - ~ 70 / 5 ~ 95%RH (on-condensing) Dimension 3*157*60 Installation Wall Mounting Type 22

* Business License * ISO 9001:2008 Certificate * Certificate of a Patent for Leak inspection device and methode of secondary battery * Certificate of a Patent for on-contact Infrared Thermometer * DA-50 CE Certificate * DA-0 Explosion-Proof Certificate * DA-0 KR Korean Register of Shipping Certification * DA-500 Explosion-Proof Certificate * DA-750 CE Certificate * DA-800 Explosion-Proof Certificate * IR-20 CE Certification * IR-40 EMC Certification * SD-50 CE Certificate * Certificate of Design Registration- Smoke Detector * Certificate of Utility Registration- Smoke Detector 23

GASDA co.,ltd B-602&603B, Bupyeong Woolim Lion s Valley, #425, Cheongcheon-Dong, Bupyeong-Gu, Incheon, Korea TEL: +82-32-623-7507 FAX: +82-32-623-75 E-mail: sales@gasdna.com http://www.gasdna.com