GfG Instrumentation Inc.

January, 2012 GfG Instrumentation 1194 Oak Valley Drive Ann Arbor, MI 48108 Toll free: (800) 050-0329 Direct: (734) 761-0573 E-mail: bhenderson@gfg-inc.com Internet: www.gfg-inc.com September, January 2012 2010 GfG Inc. Company Overview Slide 1 GfG Instrumentation Inc. Worldwide manufacturer of portable and stationary gas detection solutions September, January 2012 2010 GfG Inc. Company Overview Slide 2 1

One of the World s Leading Manufacturers of Gas Detection Products September, January 2012 2010 GfG Inc. Company Overview Slide 3 GfG Instrumentation mbh Headquarters in Dortmund, Germany A world leader in development and production of gas measurement technology for 50 years Over 300 employees worldwide in 2011 September, January 2012 2010 GfG Inc. Company Overview Slide 4 2

GFG Inc. Ann Arbor, USA Ann Arbor, Michigan, USA September, January 2012 2010 GfG Inc. Company Overview Slide 5 Customer Service Ron Manduch General Customer Service Department Support Responsible for OEM Customer Support Dave Bartley Responsible for international sales support Service department support General customer service department support September, January 2012 2010 GfG Inc. Company Overview Slide 6 3

Service Department Steve Wright Repair Technical support Warranty support How to operation questions Software / firmware questions September, January 2012 2010 GfG Inc. Company Overview Slide 7 Engineering Tony Poley Software / firmware questions Engineering project status Advanced technical support September, January 2012 2010 GfG Inc. Company Overview Slide 8 4

Marketing Paula Shovels Advertising Trade Shows Distributor programs and events Newsletters Sales collateral Documentation September, January 2012 2010 GfG Inc. Company Overview Slide 9 Reception Linda Gosdzinski Literature requests Sales support materials Leads Accounts Receivable September, January 2012 2010 GfG Inc. Company Overview Slide 10 5

Fixed Systems Jeff Allsworth Engineering applications Technical support Quotes Order status Mark Ahrens Sales support Technical support Quotes Commissioning Field service September, January 2012 2010 GfG Inc. Company Overview Slide 11 RAM Production September, January 2012 2010 GfG Inc. Company Overview Slide 12 6

Portable Instrument Production September, January 2012 2010 GfG Inc. Company Overview Slide 13 Production Team September, January 2012 2010 GfG Inc. Company Overview Slide 14 7

GfG Product Applications Confined space Fire Service Emergency response Oil industry Chemical industry Steel industry Water / waste water Sewer entry Telecommunications Municipal departments Refrigeration systems Power generation Pulp and paper September, January 2012 2010 GfG Inc. Company Overview Slide 15 GfG Fixed Detection Systems Comprehensive line of fixed transmitters and controllers Able to detect over 500 gases September, January 2012 2010 GfG Inc. Company Overview Slide 16 8

Able to detect over 500 gases September, January 2012 2010 GfG Inc. Company Overview Slide 17 Sensor Types CC = Catalytic Combustion CS = Chemosorption (Solid State) EC = Electrochemical Specialty Sensors: CI = Charge Carrier Injection (NH3) IR = Infrared (CO2 and combustible gas) TC = Thermal Conductivity ZD = Zirconium oxide (O2) September, January 2012 2010 GfG Inc. Company Overview Slide 18 9

Applications: Charge Carrier Injection (CI) Sensors Best suited for areas where electrochemical sensors are unsuitable due to continuous exposure or extreme environmental conditions Use for: Compressor rooms Vent line Blast freezers Cold storage c-csa-us Certification pending September, December January 2012 2010 2011 GfG Inc. Company Overview Slide 19 Traditional EC Toxic and Combustible Pellistor sensors Flexible smart sensor approach allows usage of widest range of available sensors from multiple sensor manufacturers GfG proprietary combustible (pellistor) sensors offer unrivalled accuracy. Stability and longevity September, January 2012 2010 GfG Inc. Company Overview Slide 20 10

EC-28 / CC-28 Transmitters Combustible, toxic gases, oxygen and hydrogen Reading of gas concentration at transmitter display Ex-proof visual and audible alarm One-person calibration at transmitter by means of touch keys or remote control Plug-in Smart Sensor Replace sensor without opening housing September, January 2012 2010 GfG Inc. Company Overview Slide 21 IR-29 Pathfinder Closed Path IR Transmitters Breakthrough technology for infrared combustible gas measurement September, January 2012 2010 GfG Inc. Company Overview Slide 22 11

RAM 4021 Autocal Automatic calibration adjustment with GFG Autocal system Dependable, long life electrochemical CO sensor Reliable solid state sensor for dewpoint measurement Low flow alarm indicator standard Standard 70 150 PSI inlet (feed) pressure September, January 2012 2010 GfG Inc. Company Overview Slide 23 RAM 4021 Autocal In-line CO monitor for medical and high pressure breathing air compressors OEM customers include: Bauer Compressors Beacon-Medeas Inc. Jordair Compressors SPX Air Treatment September, January 2012 2010 GfG Inc. Company Overview Slide 24 12

Fully Portable RAM 744 AutoCal Continuous fully portable CO monitoring and purification systems September, January 2012 2010 GfG Inc. Company Overview Slide 25 MiniCal 2 and MiniCal 3 Aqueous ammonia measurement systems Proprietary measurement technology Minical 2 (no pump) MiniCal 3 (pumped system) Use to measure aqueous ammonia / ammonium in refrigeration flop fluids Glycol Water Brine September, January 2012 2010 GfG Inc. Company Overview Slide 26 13

Portable gas detectors Micro 4 single-gas detector G450 4-gas detector G460 1-6 gas detector September, January 2012 2010 GfG Inc. Company Overview Slide 27 MICRO IV Single Sensor Gas Detector Compact and affordable single gas detector Available for wide range of toxic gases, hydrogen or oxygen Stores long-term and shortterm average values (TWA, STEL) Event logger standard Data logger standard Display backlight standard Vibrator alarm standard IR Communication Interface September, January 2012 2010 GfG Inc. Company Overview Slide 28 14

Exposure limits for H2S Old TLV: TWA = 10 ppm STEL = 15 ppm New (2010) TLV: 4 4 0 TWA = 1.0 ppm STEL = 5.0 ppm September, January 2012 2010 GfG Inc. Company Overview Slide 29 Exposure limits for SO2 Old TLV : TWA = 2 ppm STEL = 5 ppm 0 3 0 New (2009) TLV: STEL = 0.25 ppm September, January 2012 2010 GfG Inc. Company Overview Slide 30 15

Unique attachable Micro IV motorized pump Simple slide on design Add to any Micro IV whenever needed Pump powered by its own alkaline battery September, January 2012 2010 GfG Inc. Company Overview Slide 31 Docking Station Micro IV DS-220 Automatic Teast Station for Micro IV Auto Bump test Auto Calibration Bump or calibrate up to six instruments at the same time Test results automatically results stored on MMC flash memory card September, January 2012 2010 GfG Inc. Company Overview Slide 32 16

DI-220 Single Unit Docking / Data Transfer Station Use for: Calibration and bump testing Instrument setup and programming Download monitoring results to PC September, January 2012 2010 GfG Inc. Company Overview Slide 33 G450 and G460 Multi-gas Detectors September, January 2012 2010 GfG Inc. Company Overview Slide 34 17

G450 Confined Space Gas Detector One to four sensors Full 3-year warranty on all sensors Optional 6-year warranty on all sensors O2 sensor rated for continuous use in 30 C temperatures Interchangeable reechargeable (NiMH) or alkaline battery packs last 25 hours per charge Super durable IP-67 water resistant design Only $695.00 USD list price (alkaline) Only $745.00 USD list price (rechargeable) September, January 2012 2010 GfG Inc. Company Overview Slide 35 G460 Multi-gas Monitor Up to SEVEN channels detection Comprehensive range of interchangeable smart sensors: LEL, O2, CO, H2S: 3-year warranty Infrared combustible gas: 3-year warranty Infrared CO2: 3-year warranty Most other substance-specific EC toxic: 2-year warranty PID lamp: 1-year warranty September, January 2012 2010 GfG Inc. Company Overview Slide 36 18

G460 Multi-gas Monitor Standard G460 housing color now GfG Blue Optionally still available in GfG Black September, January 2012 2010 GfG Inc. Company Overview Slide 37 G450 / G460 Optional 6-year Sensor Warranty 3-year warranty on O2, LEL, CO and H2S sensors still standard Standard lifetime warranty on instrument 6-year sensor warranty option available for additional $250.00 at time of purchase September, January 2012 2010 GfG Inc. Company Overview Slide 38 19

Distributor Questions: 6-year option available for G460? Yes. (O2, LEL, CO, H2S and COSH sensors only) What part numbers do I use? G450: 1450-EXT-6 ($250.00) G460: 1460-EXT-6 ($350.00) Distributor discount: List less 25% How do I sell this option? Simply add extended warranty SKU to PO September, January 2012 2010 GfG Inc. Company Overview Slide 39 G450 / G460 Optional 6-year Sensor Warranty September, January 2012 2010 GfG Inc. Company Overview Slide 40 20

Overview of G450 / G460 Features September, January 2012 2010 GfG Inc. Company Overview Slide 41 G450 / G460 Multi-Gas Detector Interchangeable rechargeable (NiMH) or alkaline battery packs last over 20 hours per charge Top-mounted, three color, full graphics LCD Durable IP-67 water resistant design O2 sensor rated for continuous use in 30 C temperatures September, January 2012 2010 GfG Inc. Company Overview Slide 42 21

Three color "Traffic Signal" display Back lit three-color full graphics LCD Top mounted display with wrap around (360º) LED alarm indicator LCD includes flip and zoom functions September, January 2012 2010 GfG Inc. Company Overview Slide 43 Rugged design Rugged, double shot molded housing includes integral rubberized boot Durable high tension steel alligator belt clip September, January 2012 2010 GfG Inc. Company Overview Slide 44 22

G450 / G460 Battery Pack Options Alkaline: Gray NiMH: Black September, January 2012 2010 GfG Inc. Company Overview Slide 45 Rechargeable battery pack Available with built-in flashlight LED option September, January 2012 2010 GfG Inc. Company Overview Slide 46 23

G450 / G460 Drop-in Charger Available in single and double versions Simultaneously instrument and motorized pump Download data through charger or docking station Available for use with 12 VDC vehicle charging system September, January 2012 2010 GfG Inc. Company Overview Slide 47 G450 / G460 Motorized Pump Powerful motorized "smart pump" with its own battery pack Sliding up the shutter turns on the pump and covers the diffusion ports Motorized pump can be attached or removed from instrument as needed September, January 2012 2010 GfG Inc. Company Overview Slide 48 24

G450 / G460 Motorized Pump "Smart" motorized pump directly monitored by instrument for proper performance Low flow and pump malfunction alarms September, January 2012 2010 GfG Inc. Company Overview Slide 49 Mode: Average Peak Instantaneous Interval: 1 sec. 60 min. Capacity: 1,890 measurement points per gas 55 hours continuous (interval 2 min.) Datalogging Standard September, January 2012 2010 GfG Inc. Company Overview Slide 50 25

G460 Optional Extended Datalogging Storage Capacity Built-in slot for optional high capacity extended memory card Memory expansion card slot September, January 2012 2010 GfG Inc. Company Overview Slide 51 Use DS400 Docking Station for daily bump check and / or periodic calibration Standalone operation: No PC required Automatic bump-test Automatic span calibration Success / failure indication after each test Economic use of test gas Easy collection of unit test and logged data Reduced maintenance cost September, January 2012 2010 GfG Inc. Company Overview Slide 52 26

DS-404 Multi-inlet Docking Station for bump check and periodic calibration Inlets for 4 cylinders of gas Automatic Bump and Cal for 5, 6 and 7 channel instruments Supports: Quad mix (O2, LEL, CO, H2S) 5-mix with SO2 5-mix with CO2 Isobutylene HCN NO2 And other individual gases September, January 2012 2010 GfG Inc. Company Overview Slide 53 Standalone operation - No PC required! Automatic bump-test only Success / failure indication after each test Economic use of test gas Easy collection of unit test and logged data Use TS-400 Test Station for daily bump check September, January 2012 2010 GfG Inc. Company Overview Slide 54 27

DS-400 Docking Station Automatically generate comprehensive test reports and calibration certificates If you don t have the records to prove it was being done right -- it wasn t! September, January 2012 2010 GfG Inc. Company Overview Slide 55 Automatically generate calibration and bump test certificates September, January 2012 2010 GfG Inc. Company Overview Slide 56 28

Other accessories Calibration adapters Standard calibration adapter: Calibration only Smart Charging Cap: Calibration, charging and data downloading September, January 2012 2010 GfG Inc. Company Overview Slide 57 Other accessories Five instrument multi-charger September, January 2012 2010 GfG Inc. Company Overview Slide 58 29

Available sensors include: O2 Catalytic LEL Infrared LEL Infrared CO2 CO H2S COSH PID SO2 Cl2 ClO2 NH3 H2 PH3 HCN NO NO2 HCL HF ETO O3 G460 Interchangeable Plugand-Play Smart Sensors September, January 2012 2010 GfG Inc. Company Overview Slide 59 Alphasense O2-A3 Oxygen Sensor Warranted 3 Full Years! Dependable fuel-cell sensor design Exceptional cold weather performance Low failure rate September, January 2012 2010 GfG Inc. Company Overview Slide 60 30

Traditional Electrochemical Toxic Gas Sensors More types of sensors available every year Toxic gas sensors designed to detect target gases at ever lower concentrations September, January 2012 2010 GfG Inc. Company Overview Slide 61 Substance-specific electrochemical sensors Gas diffusing into sensor reacts at surface of the sensing electrode Sensing electrode made to catalyze a specific reaction Use of selective external filters further limits cross sensitivity September, January 2012 2010 GfG Inc. Company Overview Slide 62 31

Exposure limits for H2S Old TLV: TWA = 10 ppm STEL = 15 ppm New TLV: TWA = 1.0 ppm STEL = 5.0 ppm 4 4 0 September, January 2012 2010 GfG Inc. Company Overview Slide 63 Exposure limits for SO2 Old TLV : TWA = 2 ppm STEL = 5 ppm New (2009) TLV: STEL = 0.25 ppm Sensor capable of 0.05 ppm resolution 0 3 0 September, January 2012 2010 GfG Inc. Company Overview Slide 64 32

Exposure limits for NO2 Old TLV: 8 hr. TWA = 3 ppm 15 min. STEL = 5 ppm Proposed 2012 TLV (NIC) 8 hr. TWA = 0.2 ppm US OSHA PEL: Ceiling = 5 ppm 0 3 0 OX US NIOSH REL: 15 min. STEL = 1 ppm September, January 2012 2010 GfG Inc. Company Overview Slide 65 Catalytic Hot Bead Combustible Sensor Detects combustible gas by catalytic oxidation When exposed to gas oxidation reaction causes "active" bead in sensor to heat Requires oxygen to detect gas! September, January 2012 2010 GfG Inc. Company Overview Slide 66 33

Flame proof sensors depend on physical barriers such as stainless steel housings and flame arrestors to limit the amount of energy that can ever be released by the sensor The flame arrestor can slow, reduce, or even prevent larger molecules from entering the sensor Traditional LEL sensors are Flame proof devices Uncorrected readings for the pellistor LEL sensor much lower than the true concentration The larger the molecule, the slower it diffuses through the flame arrestor into the sensor Stainless steel housing Flame arrestor (sinter) September, January 2012 2010 GfG Inc. Company Overview Slide 67 Catalytic Hot Bead Structure Porous refractory bead with catalyst Platinum wire coil Active (pellistor) and reference compensator) beads 0.1 mm PTFE Mounting Disc PCB Board September, January 2012 2010 GfG Inc. Company Overview Slide 68 34

Limitations of catalytic pellistor LEL sensors Flame arrestor limits molecules larger than nine carbons (nonane) from entering sensor Even when molecules are able to diffuse into sensor: the larger the molecule the lower the relative response, and the slower the sensor responds Easily poisoned Exposure to high concentration combustible gas damaging to sensor Requires oxygen to detect gas! September, January 2012 2010 GfG Inc. Company Overview Slide 69 Catalytic pellistor combustible gas response curves September, January 2012 2010 GfG Inc. Company Overview Slide 70 35

Typical carbon number distribution in No. 2 Diesel Fuel (liquid) September, January 2012 2010 GfG Inc. Company Overview Slide 71 Typical catalytic percent LEL sensor response to methane September, January 2012 2010 GfG Inc. Company Overview Slide 72 36

Typical catalytic percent LEL sensor response to hexane September, January 2012 2010 GfG Inc. Company Overview Slide 73 Response of electrochemical and LEL sensor to 21,000 ppm hydrogen in nitrogen September, January 2012 2010 GfG Inc. Company Overview Slide 74 37

Response to methane over life of sensor CH4 response new sensor Propane response Relative response to methane may change substantially over life of sensor CH4 response partially poisoned sensor September, January 2012 2010 GfG Inc. Company Overview Slide 75 Combustible sensor poisons Combustible sensor poisons: Silicones (by far the most virulent poison) Hydrogen sulfide Other sulfur containing compounds Phosphates and phosphorus containing substances Lead containing compounds (especially tetraethyl lead) High concentrations of flammable gas! Combustible sensor inhibitors: Halogenated hydrocarbons (Freons, trichloroethylene, methylene chloride, etc.) September, January 2012 2010 GfG Inc. Company Overview Slide 76 38

Effects of hexamethyldisiloxane (HMDS) on pellistor sensor September, January 2012 2010 GfG Inc. Company Overview Slide 77 Effects of H2S on combustible gas sensors H2S affects sensor as inhibitor AND as poison Some byproducts of oxidation of H2S left as deposit on active bead that depresses gas readings while inhibitor is present Sensor generally recovers most of original response once it is returned to fresh air H2S functions as inhibitor BUT byproducts of catalytic oxidation become very corrosive if they build up on active bead in sensor Corrosive effect can rapidly (and permanently) damage bead if not cooked off fast enough How efficiently bead cooks off contaminants is function of: Temperature at which bead is operated Size of the bead Whether bead under continuous power versus pulsing the power rapidly on and off to save operating energy 4 4 0 September, January 2012 2010 GfG Inc. Company Overview Slide 78 39

Non-dispersive infrared (NDIR) sensors Many gases absorb infrared light at a unique wavelength (color) In NDIR sensors the amount of IR light absorbed is proportional to the amount of target gas present The longer the optical path through the semnsor the better the resolution September, January 2012 2010 GfG Inc. Company Overview Slide 79 Electromagnetic radiation spectrum Infrared (IR) region covers the wavelength range from approx. 0.7 µm to 100 µm More than 100 times as wide as the visible portion! September, January 2012 2010 GfG Inc. Company Overview Slide 80 40

Dual Infrared CO2 and Combustible Gas Smart Sensor Proprietary GfG infrared sensor technology Three-wavelength smart-sensor design Expected operational life: 5+ Years! Available as a one channel or two channel detector for simultaneous measurement of CO2 and combustible gas Full range: 0.1 5.0 % volume carbon dioxide (CO2) 0 100% LEL combustible gas 0 100% volume combustible gas September, January 2012 2010 GfG Inc. Company Overview Slide 81 Three detection wavelengths Entirely separate optical paths (and pathlengths) for combustible and and CO2 measurement Light path through three wavelength GfG NDIR sensor September, January 2012 2010 GfG Inc. Company Overview Slide 82 41

1,1 1 Two and three wavelength NDIR sensors 0,9 0,8 0,7 Simultaneous measurement CO2 and combustible gas LEL: 3.3 μm CO2: 4.3μm Ref: 4.0μm Transmission 0,6 T 0,5 0,4 0,3 0,2 0,1 0 l [nm] 2000 2500 3000 3500 4000 4500 Wellenlänge [nm] 3.3μm 4.0 μm 4.3 μm September, January 2012 2010 GfG Inc. Company Overview Slide 83 Infrared Spectroscopy Geometry of molecule and absorbance of light by specific bonds gives rise to a characteristic IR absorbance fingerprint of molecule September, January 2012 2010 GfG Inc. Company Overview Slide 84 42

Two wavelength NDIR combustible gas response curves September, January 2012 2010 GfG Inc. Company Overview Slide 85 Relative response of pellistor and infrared sensors to n-hexane Both sensors were calibrated to 50% LEL methane Uncorrected readings for the IR sensor more than twice as high as the true concentration 50% LEL n-hexane September, January 2012 2010 GfG Inc. Company Overview Slide 86 43

Response of calibrated pellistor and IR sensors to 50% LEL n-hexane Both sensors were calibrated to 50% LEL n- Hexane Readings for both sensors are now very close to the true 50% LEL concentration Initial response of IR sensor is slightly quicker than the pellistor sensor However, the time to the final stable response (T100) is virtually identical for both sensors, (about 150 seconds) 50% LEL n-hexane September, January 2012 2010 GfG Inc. Company Overview Slide 87 Photoionization Detectors Used for measuring solvent, fuel and VOC vapors in the workplace environment September, January 2012 2010 GfG Inc. Company Overview Slide 88 44

LEL vs. PID Sensors Catalytic LEL and PID sensors are complementary detection techniques Catalytic LEL sensors excellent for methane, propane, and other common combustible gases that are NOT detectable by PID PIDs detect large VOC and hydrocarbon molecules that are undetectable by hotbead sensors Best approach is to use multi-sensor instrument that includes both types of sensors September, January 2012 2010 GfG Inc. Company Overview Slide 89 Contaminant LEL (Vol %) Flashpoint Temp (ºF) Acetone 2.5% -4ºF (-20 ºC) Diesel (No.2) vapor 0.6% 125ºF (51.7ºC) Ethanol 3.3% 55ºF (12.8 ºC) Gasoline 1.3% -50ºF (-45.6ºC) n-hexane 1.1% -7ºF (-21.7 ºC) Isopropyl alcohol Kerosene/ Jet Fuels 2.0% 53ºF (11.7ºC) 0.7% 100 162ºF (37.8 72.3ºC ) MEK 1.4% 16ºF (-8.9ºC) Turpentine 0.8 95ºF (35ºC) Combustible sensor limitations Xylenes (o, m 0.9 1.1% 81 90ºF 100 PPM 100 PPM & p September, isomers) January 2012 2010 GfG Inc. (27.3 Company 32.3 ºC) Overview TWA Slide 90 TWA; 150 PPM STEL OSHA PEL NIOSH REL TLV 5% LEL in PPM 1,000 PPM TWA 250 PPM TWA 500 PPM TWA; 750 PPM STEL 1250 PPM None Listed None Listed 15 PPM 300 PPM 1,000 PPM TWA 1000 PPM TWA 1000 PPM TWA None Listed None Listed 300 PPM TWA; 500 PPM STEL 500 PPM TWA 50 PPM TWA 400 PPM TWA None Listed 200 PPM TWA 100 PPM TWA 400 PPM TWA; 500 PPM STEL 100 mg/m3 TWA (approx. 14.4 PPM) 200 PPM TWA; 300 PPM STEL 100 PPM TWA 1,650 PPM 650 PPM 50 PPM TWA 550 PPM 200 PPM TWA; 400 PPM STEL 200 mg/m3 TWA (approx. 29 PPM) 1000 PPM 350 PPM 200 PPM 700 PPM TWA; 300 PPM STEL 20 PPM TWA 400 PPM 100 PPM TWA; 150 STEL 450 550 PPM 45

G460 Smart Sensor PID PID Smart-Sensor Broad range VOC measurement Extremely sensitive Available in two ranges: 0.1 2000 ppm (Standard PID sensor) 0.01 20 ppm (Optional high resolution PID sensor) September, January 2012 2010 GfG Inc. Company Overview Slide 91 G460 Smart Sensor PID Advantages Miniaturization Ruggedness EMI/RFI resistance Low humidity interference Reduced need for lamp cleaning September, January 2012 2010 GfG Inc. Company Overview Slide 92 46

PID, CC LEL, IR LEL and CO sensors exposed to 50% LEL isobutylene (9,000 ppm) The maximum full-range reading for the G460 PID is 3,000 ppm (= 17.5% LEL Isobutylene). Readings at or above this concentration are logged at the maximum value September, January 2012 2010 GfG Inc. Company Overview Slide 93 Test run# 1: PID, CC LEL, IR LEL and CO sensors exposed to diesel vapor September, January 2012 2010 GfG Inc. Company Overview Slide 94 47

Test run# 4: PID, CC LEL, IR LEL and CO sensors exposed to diesel vapor September, January 2012 2010 GfG Inc. Company Overview Slide 95 Selection matrix for Sensors for measurement of combustible gas and VOCs September, January 2012 2010 GfG Inc. Company Overview Slide 96 48

Examples of possible sensor configurations optimized for specific applications* * Note that the listed sensor configurations represent possible solutions for specific applications. The presence of additional conditions or requirements may change the optimal sensor configuration. September, January 2012 2010 GfG Inc. Company Overview Slide 97 GfG wins hands down when it comes to features AND three year cost of ownership! September, January 2012 2010 GfG Inc. Company Overview Slide 98 49

GfG G450 versus MSA Altair 4X September, January 2012 2010 GfG Inc. Company Overview Slide 99 GfG G450 versus ISC MX-4 September, January 2012 2010 GfG Inc. Company Overview Slide 100 50

GfG G450 versus BW MicroClip XT September, January 2012 2010 GfG Inc. Company Overview Slide 101 Data sheets Price lists Manuals Sales Support: www.goodforgas.com Application Notes Product images Print ads...and more! September, January 2012 2010 GfG Inc. Company Overview Slide 102 51

Questions? September, January 2012 2010 GfG Inc. Company Overview Slide 103 52