Hot Products. Heavy Industrial Intercom Sytems. XLT Technology (extreme Light Technology) Federal Signal Introduces Hazardous Location with 27XL 225XL

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2 ot Products Introduces azardous Location with XLT Technology (extreme Light Technology) A 27XL 24VDC, 120VAC and 240VAC Four lens colors Flashing or steady-burn 60,000 hour LED 3/4-inch pendant mount standard; other options available Dome guard optional Type 4X, 66 enclosure Marine Listed UL and cul Listed for Class 1, Division 1 XLT (extreme Light Technology) XLT is a break through high intensity LED array designed to meet the demands of industrial customers, providing maximum light ouput and superior lens fill. B C 225XL 24VDC, 120VAC and 240VAC Four lens colors Flashing mode standard, configurable to steady-burn 60,000 hour LED 1/2-inch pipe mount Type 4X, 66 enclosure Marine Listed UL and cul Listed for Class 1, Division 2 191XL 24VDC, 120VAC and 240VAC Four lens colors Flashing mode standard, configurable to steady-burn 60,000 hour LED 3/4-inch pip mount Dome guard included Type 4X, 66 enclosure Marine Listed UL and cul Listed for Class 1, Division 2 XLT LEDs Overall Dim (In.) Key Color Voltage Amps Candela Flash Rate Dia. Lamp Life (hr) no. A Amber 24DC ,000 27XL-024A 1TA A Red 24DC ,000 27XL-024R 1TA A Amber 120AC ,000 27XL A 1TA A Red 120AC ,000 27XL R 1TA B Amber 24DC , XL-024A 1TAF7 4.0 B Red 24DC , XL-024R 1TAF6 4.0 B Amber 120AC , XL A 1TAF9 4.0 B Red 120AC , XL R 1TAF8 4.0 C Amber 24DC , XL-024A 1TA C Red 24DC , XL-024R 1TA C Amber 120AC , XL A 1TA C Red 120AC , XL R 1TA eavy Industrial Intercom Sytems This fixed line, single-change heavy duty industrial intercom features a NEMA 4X, 65 cast aluminum housing, integrated Talk/Listen switch, volume control and call button. AD-27A Master control function 120VAC, 1.47 Amp 25 watt speaker Single channel, balanced line output Voltage Amp Overall Dim (In.) W D Industrial Intercom NEMA Rating no X AD-27A 3LY36 11

3 Status Indicators When you encounter an area with process control needs, such as; machine shut down, material shortage, fault, robotic cell activity or tooling change. Grainger offers a complete line of status indicators. Create a column of signaling lights by combining a base and a choice of light modules. Litestak Available with LED or incandescent lamps Meets NEMA 1 requirements UL & cul listed based & light modules, indoor CSA certified for indoor use UniStat 70 flashes per minute Available in tri-color model Nema 4X, 66 enclosure Surface or integrate 3/4 NPT pipe mount SemiStat 60 flashes per minute Flashing and Steady Burn LED Choice or tri-color or quad color models Piezo sounder with volume control produces 60 10ft. For indoor use only Surface Mount MicroStat v Available in five lens colors (amber, blue, clear, green & red) Quick and easy lens restacking Type 4X enclosure Surface or integrated 3/4 NPT pipe mount Crosshatch lens provides bright full-face illumination Litestak Lamp Overall Dim (In.) Description Color Life (r.) Voltage Amps Dia. Bases Standard Base VAC LSB-120 3T Surface-Mount VAC LSBS 1N Light Modules Incandescent Light Amber VAC LSL-120A 3T Incandescent Light Blue VAC LSL-120B 3T Incandescent Clear VAC LSL-120C 3T Incandescent Light Green VAC LSL-120G 3T Incandescent Light Red VAC LSL-120R 3T LED Amber 100, VAC LSLD-120A 3WU LED Blue 100, VAC LSLD-120B 3WU LED Clear 100, VAC LSLD-120C 3WU LED Green 100, VAC LSLD-120G 3WU LED Red 100, VAC LSLD-120R 3WU orns orn Module VAC /4 4 LS-120 4RM SemiStat Lamp Overall Dim. (In.) Type Life (r.) Voltage Amps W D 4-Light 100,000 24VAC/VDC SCB-024QC 5LE Light 100,000 24VAC/VDC SCB-024TC 5LE19 1.0

4 Warning Lights When you approach an area that requires warning but the high ambient noise level is a hindrance, look to Grainger for the complete line of warning lights. A C Rotating For areas where caution should be exercised, such as process control, start-up, overhead door movement, or where action or movement requires attention, Grainger recommends a rotating light. 40 watt incandescent lamp 120VAC Available in 2 dome colors UL, cul Listed and CSA Certified Type 4X 1/2 pipe mount or surface mount 200 watt sealed beam 120VAC Pivoting lamp yoke Available in 2 dome colors eavy duty die-cast housing UL, cul Listed and CSA Certified 1 pipe mount or surface mount B D Flashing Battery Powered Available in 12VDC, 24VDC & 36VDC Type 3R Available in 2 dome colors 1/2 pipe mount or surface mount UL Listed, CSA Certified Uses two standard 6VDC lantern batteries Available in 12VDC 300 hour, 5W incandescent lamp Available in 2 dome colors Type 3R weatherproof enclosure Lamp Life (r.) Warning Lights Flashes Per Minute Dimensions (In.) Key Color Voltage Amps Peak Candela Dia. Lots Qty Wt A Red 120VAC S-120R 4A A Amber 120VAC S-120A 4A C Red 120VAC , L-120R 1N C Amber 120VAC , L-120A 1N Warning Light Mounting Kit LWMB2 5T Flashing Lights Key Flasher Type Flashes Per Min. D Incandescent 65 BPL26 1N M Strobe 60 BPL26ST 5WF Surface-Mount Strobe Lights A Clear Strobe 80 VALS-120C 1N A Red Strobe 80 VALS-120R 1N Electraflash Flashing Dimensions (In.) Key Color Voltage Amps Peak Candela Lamp Life (r.) Flashes Per Minute Dia. Wt B Red 12VDC R 1N B Amber 12VDC A 1N B Amber 24VDC A 1N B Amber 36VDC A 1N E Strobe For areas requiring a warning potential dangers like toxic release, treacherous walkways and moving robotic equipment, Grainger offers strobe warning lights. Uses two standard 6VDC Available in 12-24VDC, lantern batteries F 120VAC and 240VAC Available in 12VDC Available in 2 lens colors Available in 2 lens colors 10,000 hour high-intensity Type 3R weatherproof strobe tube enclosure 1/2 pipe mount Magnetic mount UL, cul Listed and CSA Certified Type 4X, 66 enclosure Available in 24VDC, 120VAC and 240VAC Available in 12-24VDC, Available in 2 lens colors 120VAC and 240VAC I 10,000 hour strobe tube Available in 2 dome colors 1/2 pipe mount 10,000 hour high-intensity Dome guard optional strobe tube UL & cul Listed CSA 3/4 pipe mount Certified, CSFM Approved UL, cul Listed and CSA Certified Type 4X, 66 enclosure Type 4X, 66 enclosure Marine rated Marine rated G Available in 24VDC and 120VAC Available in 3 dome colors Incandescent lamp included Screw on lens Surface, Edison & 1/2 pipe mount UL, cul Listed and CSA Certified Type 4X enclosure

5 Explosion-Proof Key Color Lamp Life (r.) Voltage Amps D G Amber 10, VAC XST-120ASC 1N G Red 10, VAC XST-120RSC 1N azardous Location D Red 10, VAC XST-120R 1N D Amber 10, VAC XST-120A 1N F Red 10, VAC XST-120R 1N F Amber 10, VAC XST-120A 1N Available in 120VAC Available in 2 lens colors 40,000 hour strobe tube Flush or surface mount UL Listed, CSA Certified Type 3R, 44 enclosure Available in 12-48VDC Low profile only 3-5/8 high Screw on dome Surface mount Type 4X enclosure Available in 2 dome colors UL, cul Listed & CSA Certified Available in 12VDC, 24VDC 120VAC & 240VAC Available in 3 dome colors Low profile 2.6 x 2.3W x 5L Surface mount UL Listed Type 4X, 65 enclosure A B C D E F Available in 12VDC, 24VDC & 120VAC 1/2 pipe mount or surface mount Type 3R Available in 2 dome colors 4,000 hour strobe tube UL Listed & CSA Certified Available in 120VAC 1/2 pipe mount or surface mount UL, cul Listed and CSA Certified Single or double flash strobe 1/2 pipe mount Available in 2 dome colors 10,000 hour strobe tube Type 4X, 66 enclosure Available in 120VAC Available in 2 dome colors 10,000 hour strobe tube UL, cul Listed & CSA Certified Type 3R, 45 enclosure Key Color Voltage Amps Peak Candela Electraflash Strobe Lamp Life (r.) Flashes Per Minute Dim. (In.) E Red 12VDC , ST-012R 3T E Amber 12VDC , ST-012A 3T E Red 24VDC , ST-024R 3T E Amber 24VDC , ST-024A 3T E Red 120VAC , ST-120R 3T E Amber 120VAC , ST-120A 3T Dia. Shpg Wt Streamline Low-Profile Mini Strobes Key Color Voltage L W Fed Sig B Green 120VAC LP1-120G B Red 120VAC LP1-120R 4RM RM Strobe Warning Lights Key Color Voltage Amps Peak Candela Lamp Life (r.) Flashes Per Minute Dimensions (In.) Fed Lots Qty Wt C Red 120VAC ,000,000 10, FB2PST-120R 4A C Amber 120VAC ,000,000 10, FB2PST-120A 4A F Red 120VAC ,000,000 10, DST-120R 4A F Amber 120VAC ,000,000 10, DST-120A 4A Warning Light Mounting Kit LWMB2 5T Economical Key Mounting Type Color Voltage Amps NEMA Rating Dimensions (In.) Dia G A19 Screw-In Amber 120VAC 0.1 3R LP3E-120A 5WF G A19 Screw-In Red 120VAC 0.1 3R LP3E-120R 5WF G 1/2 Threaded w/locknut Amber 12-48VDC X LP3M A 5WF G 1/2 Threaded w/locknut Green 12-48VDC X LP3M G 5WF G 1/2 Threaded w/locknut Red 12-48VDC X LP3M R 5WF G 1/2 Threaded w/locknut Amber 120VAC 0.1 4X LP3M-120A 5WF G 1/2 Threaded w/locknut Green 120VAC 0.1 4X LP3M-120G 5WF G 1/2 Threaded w/locknut Red 120VAC 0.1 4X LP3M-120R 5WF G 1/2 Threaded w/locknut Amber 120VAC 0.1 4X LP3P-120A 5WF G 1/2 Threaded w/locknut Red 120VAC 0.1 4X LP3P-120R 5WF G Flat Surface Amber 12-48VDC X LP3T A 5WF G Flat Surface Red 12-48VDC X LP3T R 5WF D Flat Surface Amber 12-48VDC X LP A 5WF D Flat Surface Red 12-48VDC X LP R 5WF Dia.

6 Audible s When you enter a corrosive atmosphere area with high noise levels, extreme temperatures, dust and humidity, Grainger offers a wide array of audible signals. A Vibratone orn E Weatherproof Back Box Low current horn used for producing coded blast or sustained tones for paging, and for start and dismissal signaling indoors or outdoors (with 4A969 weatherproof box). Gray powder coat finish with mounting screws included. UL listed; CSA Certified; FM approved. For weatherproof outdoor surface mounting of 4A967 horn, 1N742 siren, 4A960 and 5T589 bells, and 5LE20 speaker amplifier. Cast-aluminum gasketed weatherproof box complete with mounting lugs and threaded conduit openings, 1/2 and 3/4. B Electronic Siren F Flush-Mount Trim Produces one of four different high decibel tone outputs: wail, yelp, horn or temporal whoop. Rugged, highimpact plastic construction. Resistant to ultraviolet light and is rated NEMA 3R when mounted on 4A969 weatherproof box. Unit can be pointed anywhere within 360 o half sphere of area. UL listed indoor/ outdoor; cul listed. Gasketed trim ring is used to mount 4A967 Vibratone orn. Made of 18-gauge R10 aluminum with neoprene gaskets between mounting surface and plate and between plate and horn. C Resonating orn G Telephone Extension Ringers Electric horn produces sound by means of a diaphragm, which resonates a column of air. Features corrosion resistant, castaluminum housing with brass projector. Gray powder coat finish. Duty cycle of five minutes on, five minutes off. UL listed indoor/outdoor, CSA certified. Designed to draw attention to a ringing phone in high noise areas. Activated by a ringing signal of an analog phone (between z). Feature die-cast aluminum housing and gray powder coat paint. Requires duplex jack, not included (order 6C080). UL listed for indoor use. FCC approved. D Vibratone Bells SelecTone Vibrating bells signal general alarm, start and dismissal, and danger warnings. Mount on standard outlet box. Outdoor applications use 4FA969 weatherproof box. Gray powder coat finish. UL listed, CSA certified, and FM approved. Self-amplified, solid-state signal device with gain control Requires one tone module 1N894 listed below (order separately). Used for coded paging, general alarm, start and dismissal, evacuation, and other specific warnings. Gray powder coat finish. UL listed indoor/outdoor. CSA approved.

7 Audible s I J Electric orn Vibrating stainless steel diaphragm produces 100dB at 10 feet. Copper-free, corrosion-resistant, cast aluminum enclosure is tapped for 3/4 mounting feature internal volume control. NEC Class 1, Div. 1, Groups C & D; Class II, Div. 1 Groups E, F, & G; Class III. UL listed, cul listed and CSA certified. K SelecTone Speaker Amplifier Produces crisp, clear tones, digital voice messages, and live public address. Internal gain control allows output adjustment. Solid-state circuitry. NEMA 3R enclosure. Suitable for outdoor use when installed with 4A969 weatherproof box. Flush or surface mount. UL listed, cul Listed, CSA certified and CSFM approved. Die-Cast Zinc orn Zinc housing with polyurethane finish; surface or flush-mount. For coded or sustained tones. NEC Class 1, Div. 2, Groups A, B, C & D; Class II, Div. 2, Groups F & G; Class III. L M N Siren Electronic Siren capable of producing three different high decibel tones from the same unit. Designed for standalone, high-output in any application where multiple tones are needed but voice paging is not required. SelecTone Speaker/Amplifier Loudspeaker has built-in volume control. Use with Universal Tone Module 1N894 to produce one of 32 different tones. 86dB to 110dB at 10 feet. Universal Tone Module For exclusive use with 4A968, 3WU52, and 3WU53 audible signals. Micro-controller based tone generator is capable of producing any one of 32 different tones, including; Wail, Yelp, i Lo, Bell, Yeow, orn, Beep, Stutter, Slow Whoop, Gradual orn, Temporal Slow Whoop, Westminster Chime, Evac, Air orn, Chime, 6 Eurotones and more. Audible ing Devices Key Type of Required Power Amps Overall Dim. (In.) Lots Qty. Shipg W D A orn, ft 120VAC, 60 z A B Siren, ft 24VDC, 120/240VAC SST-MV 1N C orn, ft 120VAC, 60 z N D 4 Bell, ft 120VAC, 60 z A D 6 Bell, ft 120VAC, 60 z T E Weatherproof Box WB 4A F Trim Plate TR 5LE G 4 Bell, ft 120VAC TELB 3LY G orn, ft 120VAC TEL 3LY ft 120VAC, 60 z GC-120 4A I ft 120VAC, 60 z GC-120BG 5LE N Tone Module UTM 1N azardous Location Audible and Explosion-Proof ing Devices Key Voltage Amps Dimensions (In.) W/Dia. D M 24VDC GCX-024 3WU M 120VAC GCX-120 3WU K 120VAC WBX-120 3WU J 120VAC X N L 24VDC, 120 & 240VAC 210 ma SSTX-MV 3WU

8 Fire Alarm Initiating (Input) Devices Grainger offers signaling systems that are designed to ensure safety, sound alarms, increase productivity, or provide a means of communication. initiating devices are the cost effective method of activating audible and visual signals. Fire Alarm Pull Stations Can be used as either break-glass or non-break-glass type. Stations mount on 4 square single gang electrical boxes. Die-cast body is painted red. eat Detectors Surface mount FM approved UL listed Description Initiating Coverage (Sq. Ft.)* Stock Single-Action Fire Alarm Station --- FSF103 4BY Dual-Action Fire Alarm Station --- FSF102 4BY Combination eat Detector FSF101SB 4BY Combination eat Detector FSF100 4BY Ionization Type Smoke Detector 900 FSF110SB 4BY Photoelectric Type Smoke Detector 900 FSF109 4BY Duct Smoke Detector --- FSF107 4BY Smoke Sampling Tube --- FSF108 4BY (*) Coverage at 30-ft. spacing, except Nos. 4BY43 and 4BY42 are 50-ft. spacing Combination o Detector activates either at a fixed temperature of 135 o F or at a 15 o F per minute rate-of-rise in temperature. Combination o Detector activates at a fixed temperature of 200 o F or at a 15 o F per minute rate-of-rise in temperature. Smoke Detectors LEDs on units give visual indication of alarm activation Include test switch UL listed Ionization Type Responds quickly to fast-burning, low-smoke fires by sensing airborn combustion particles. Photoelectric Type Detects dark or thick smoke and responds quickly to slow-smoldering, high-smoke fires. Duct Activates when combustion particles exceed 2.3% per feet in air moving at 100 to 4000 feet per minute. Includes housing and detector; use with sampling tube no. 4BY49. Smoke Sampling Tube 5-foot tube for use with detector 4BY48 can be trimmed for shorter duct distances. Fire Alarm ing (Output) Devices Fire Alarm Bell 6 vibrating motor bell is red and includes mounting plate. Fire Alarm orn igh energy horn can be operated in continuous or temporal (on-off) mode. Fire Alarm Chime Indoor-mount chime has adjustable volume Fire Alarm Strobes Indoor strobes flash once per second. Includes trim plate. Fire Alarm orns and Strobes Indoor units provide combination of synchronized audible and visual signals. orn pattern can be set to continuous or temporal (On-Off) model. Includes trim plate. Synchronization Module Synchronizes strobes or horn/strobes in fire alarm systems up to 3 amps per circuit. Meets UL 1971 standards. ing (Output) Devices Description Dimensions (In.) Alarm Current (Amps) Operating Voltage (VDC) Flash (Candela) Peak Output (dba at 10 Ft.) Fed Stock W L Fire Alarm Bell FSF R 4BY Fire Alarm orn FSF R 4BY Fire Alarm Chime FSF R 4BY Fire Alarm Strobe / FSF205ST-024R 4BY Fire Alarm Strobe / FSF204ST-024R 4BY Fire Alarm orn/strobe /75 88 FSF200ST-024R 4BY Fire Alarm orn/strobe FSF201ST-024R 4BY Sychronization Module FSF206 4BY62 0.6

9 Vehicular Warning Lights Let Grainger get your vehicle ready for safety. s attention-getting warning signals can attach to vehicles such as fork lifts, dump trucks, waste disposal vehicles and tow trucks. A C E Key Color Voltage Amps Lamp Life (rs.) Sentry Flashes Per Min. Dim. (In.) Dia. Fed A Amber 12VDC WU B Strobe Amber 12-24VDC 80,000 candelas per flash Large parabolic reflector 55 watt halogen bulb polycarbonate Meets SAE J845 Class 1 requirements Dome and base are impact-resistant Magnetic Mount with 10 ft. cord with cigarette lighter plug or hard wire 55 watt halogen lamp produces 68,000 candelas 95 or 175 flashes per minute Dome and base are impact-resistant polycarbonate Conforms to SAE J845 Swivel and magnetic mount with 10 ft. cord with cigarette lighter plug 1,000 hour lamp life Dome and base are Meets SAE J1318 Class 2 requirements elical halogen strobe tube impact-resistant polycarbonate ighlighter Mini Lightbars YE25 5 D Parabolic Amber 12VDC LCM-A 3LY B D Pulsator Key Color Voltage Amps Flashes Per Min. Dim. (In.) Magnetic Mount Dia C Amber 12-48VDC YE ard Wire C Amber 12-48VDC YE C Amber 12-48VDC WU Key Dome Color Strobe 65 flashes per minute ard wired Class 2 requirements Provides quad flash 9 joules Conforms to SAE J1318 Parabolic 95 flashes per minute 80,000 candelas Class 1 requirements 55 watt halogen lamps produce Magnetic mount with 10 ft. cord with cigarette lighter plug Conforms to SAE J845 Magnet Mount Rotating Light Voltage Amps Dimensions L W R E Amber 12VDC FB3SM-A 4RM E Blue 12VDC FB3SM-B 4RM43 2 Shpg Shpg Back Up Alarms Designed for use in a wide variety of vehicles that operate in populated areas both indoor and outdoor. A C Produces two distinct tones puls and constant-on Impact resistant housing Designed for multi-volt operation Conforms with SAE and OSA requirements Universal Mounting bracket Adjusts sound output automatically 80 pulses per minute Operates on 12-48VDC power UL listed Type 4X enclosure B Key Voltage Amps Decibels (db) 97dB at 4 60 pulses per minute Conforms to SAE J994 Sound Level Type C Type 4X enclosure Vehicle Back-Up Alarms Fed Wt A 9 to 48VDC EPBA 2YE B 12-48VDC at 4Ft N C 12-48VDC at4ft RM40 1.6

10 Enclosure Rating Reference Guide Nema Ratings National Electrical Manufacturers Association Type Indicates: 1 General Purpose, Indoor To prevent accidental contact of personnel with the enclosed equipment in areas where unusual service conditions do not exist. Provide protection against falling dirt. 2 Drip-Proof, Indoor Similar to Type 1, but also protects against falling non-corrosive liquids and falling dirt. Drainage provisions provided. 3 Dust-Tight, Rain-Tight, Sleet-Resistant, Outdoor Protected against windblown dust and water. 3R Rainproof, Sleet-Resistant, Outdoor Protected against rain. 3S Dust-Tight, Rain-Tight and Sleet-Proof, Outdoor Protected against windblown dust and water, remains operable when covered by external ice or sleet. (Not protected against internal icing.) 4 Water-Tight and Dust-Tight, Indoor and Outdoor Protected against windblown dust and rain, splashing water, seepage water, falling or hose-directed water, and severe external condensation. Mountings are external to cavity. 4X Water-Tight, Dust-Tight, Indoor and Outdoor Same as Type 4 but also corrosion-resistant. Passes 200-hr. salt spray (fog) test. Ratings Ingress Protection Prefix First # Solids 0 No Protection 1 Over 50mm 2 Over 12mm 3 Over 2.5mm 4 Over 1.0mm 5 Dust, limited ingress from all directions 6 Total protection against dust Prefix Second # Water 0 No Protection 1 Dripping 2 Dripping when tilted up to 15ϒ 3 Spraying when tilted up to 60ϒ 4 Splashing 5 Low pressure jets 6 Strong jets ow To Choose An Audible Purpose Ambient Noise Coverage When choosing a signal for an application, remember the acronym PAC. If you determine a signal s PURPOSE, the AMBIENT NOISE of the environment and the area of COVERAGE that is needed, you will be able to fit the right device to your application. Purpose Ambient Noise Coverage Determine whether the signal will be used for the monitoring of a process or for emergency notification (fire, chlorine leak, natural disasters). Study operational uses such as start/stop work, coded paging and voice messages. Also, the type of duty cycle (i.e.: time device is on vs. time off) will determine what device is best suited for a given application. Ambient noise levels and the frequency (low or high) are critical in determining the type of device to be recommended. Most facilities will have already recorded this information for OSA compliance. ow big of an area is to be covered? Coverage requirements dictate the type(s) and number of devices that will be needed. A plot plan of the plant or a blueprint of the building can be very helpful in determining area of coverage, and help analyze what obstructions might be a factor in complete plant coverage. Measuring Sound X 400' 107dB The following chart demonstrates the role distance plays in the loudness of an audible signal. Most of our devices are measured at a distance of 10 feet (on axis); Outdoor Warning Sirens are measured at 100 ft. (on axis). This gives us a common point for comparison. To understand the range of these devices, use a 6dB loss per distance doubled for the regular devices and a 10dB loss per distance doubled for outdoor sirens. OUTDOOR 200' 117dB 100' 127dB For example, a regular device produces 6dB less at a distance of 20' than at 10'. An outdoor warning device is 10dB less at 200' than at 100'.

11 Glossary Alarm: A signal for attracting attention to an event. Ambient Noise Level: The level of acoustic noise existing at a given location, such as in a room, in a compartment, or at a place outside. Amplifier: An electronic component that boosts the voltage or power level of a signal. Beacon: A device used to produce a visible indication of an event. Candela (cd): The standard unit for luminous intensity. Crosshatch Lens: The pattern of the plastic material of the lens that results in a brilliant illumination of the signal. Decibel (db): A unit used to convey the intensity of sound. Dip Switch: Stands for Dual Inline Package switch, one of a set of small (sometimes very small) toggle switches on a circuit board that are used for configuring the device. Dome: The top component of a visual signal manufactured in various colors to create different color signals. Gain Control: A device that adjusts the gain of an amplifier by altering the amount of negative feedback in the amplifying system. Note: Not the same as volume control. alogen Bulb: A bulb filled with halogen gas, a substance that causes the particles of tungsten to be redeposited onto the tungsten filament. This process extends the lamp s life and also makes the light whiter and brighter. FM Approved: FM stands for Factory Mutual, a third party approval and certification company that performs rigorous testing to specifications to ensure products meet or exceed their claims. ousing: A protective cover designed to contain or support a light or horn. Often constructed of polycarbonate or die-cast aluminum. : Is an international classification system to classify the Ingress Protection of an enclosure against solids and liquids as prescribed in the International Standard IEC For additional information on the classification system, see the product catalog or website Incandescent Lamp: A light source that uses electricity to heat up a filament until until it gets so hot that it glows bright. Lamp: A complete light source unit, usually consisting of a light generating element (arc tube or filament), support hardware, enclosing envelope and base. LED: Stands for Light Emitting Diode. A diode designed to give off light when current flows through it. LED Lamp: The bulb or tube portion of an electric lighting device. Low-Profile: A signal that is short in physical size. A low profile signal might be used in a location with limited or small space. Lumen: A unit of measurement quantifying the amount of light emitted from a light source. NEC: National Electrical Code, developed and published by the National Fire Protection Association. NEMA: National Electrical Manufacturers Association. NEMA provides a forum for the standardization of electrical equipment. See the product catalog or website for a complete listing of NEMA ratings. Nema Type 1: Intended for use primarily to provide a degree of protection against limited amounts of falling dirt. Nema Type 3R: Intended for outdoor use primarily to provide a degree of protection against rain, sleet, and damage from external ice formation. Nema Type 4X: Intended for indoor or outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, hose-directed water, and damage from ice formation Parabolic Reflector: A reflective device formed in a dish (concave) shape which helps produce a parallel light towards its focused direction. Polycarbonate: An engineering plastic used to build housings; noted for its impact-, weather-, and heat-resistant qualities. Powder Coat Finish: A mixture of finely ground particles of pigment and resin which is then sprayed onto a surface and cured with a heat process. Powder coat finishes are attractive, high quality, and are resistant to chipping, scratching, UV damage and rust. SAE: Society of Automotive Engineers, an organization that develops the standards to help advance mobility engineering. SAE Standard J845: The standard for optical warning devices for emergency vehicles (single color, 360 degree lights). SAE Standard J994: The standard for vehicle electric back-up alarm devices. SAE Standard J1318: The standard for gaseous discharge warning lamp for authorized emergency, maintenance and service vehicles. Tone Output: The sound that comes out of an electronic siren. products have various tones such as wail, yelp, whoop, voice tones and more. Rotating Light: A continuous beam of light that rotates inside the housing. Status Indicator: A signal used to indicate the status of an event, such as the startup of machinery. Strobe Light: A device that emits a bright flashes of light at a timed rate. Strobe lights use xenon-gas tubes and are typically brighter than flashing lights. Tone: Refers to the sound that emits from a horn. has products with various tone styles such as wail, yelp, UL: Underwriters Laboratories Inc., an organization that tests products for public safety. cul: The Canadian approval given by Underwriters Laboratory that meet the safety standards for Canada.