optional Model RA400Z Remote Annunciator to be connected. Ripple Voltage: unreasonable use, modifications, or alterations occurring after the date of manufacture. Green LED indicator on the base. Have feedback about a particular System Sensor product? 2. Fire Alarm Systems | System Sensor L-series indoor horn/strobes System Sensor L-series indoor horn/ strobes www.boschsecurity.com u u Plug-in design with minimal intrusion into the back box u Field-selectable candela settings of 15 or 30 cd at 12 V or 15, 30, 75, 95, 110, 135, and 185 cd at 24 V u Horn rated at 88+ dBA at 16 V Rotary switch for horn tone and two volume settings 6. Powered by AFMG's proven EASE professional sound design technology, EASE Evac is scaled specifically for life safety professionals and comes preloaded with System Sensor SpectrAlert Advance speaker data. covers from any detectors that were left in place during construction. Latching Alarm: Reset by momentary power interruption 0.18 MAX. Have feedback about a particular System Sensor product? Should For two-wire models 2W-B and 2WT-B, connect detectors only to compatible alarm control panels as identified by System Sensor's compatibility chart. MOD2 module (refer to installation manual D5 00-46-00), the 2W -B and 2WT -B. are capable of gener ating a "maintenance needed" signal. for use with i3 Series compatible control panels or the i3 Series 2W-MOD module only. 0.3 The 2W-B smoke detector is not the typical conventional detector. Ready to learn more? Hold the heat source about 12 inches from the detector to avoid damage KingOfTheP4s 3 yr. ago Best thing to do in this case would be to call the company of your choice, such as EST, and ask a sales representative to give you a list of MRI-safe devices. Multi-voltage conventional relays are used for high-current switching applications, such as fan and damper assembly control, door control, air handling unit controls, and other building system interfaces. Consult the list to locate a control module for your specific fire alarm system. You can use up to sixteen 2W-B smoke detectors on the zone one fire loop. To test this please remove AC power and set the panel into alarm mode to see if the battery will support the system and report back. System Sensor two-wire smoke detectors are marked with a compatibility identifier located on the label on the back of the product. Smoke Entry Test System Sensor's AV notification devices are one of the most versatile, easy to install, and cohesive audible visual (AV) notification appliances in the industry. Z@~P]%*?p S_iVN$rtE;[\SmgisL^aOTYVE \xOQc_m1eN"hB~n5#{f-!tEn -:)D#bBc7yo0x&i9Su%t wa+"i The LED indication must not, be used in lieu of the tests specified under Testing. Series 2W-MOD module (refer to installation manual D500-46-00), the 2W-B and 2WT-B are capable of generating a "maintenance. NIB!! Notify the proper authorities that the system is in operation. 4-Wire Smoke Detector with 135F Fixed Heat Sensor, 2-Wire Smoke Detector with Fixed Heat Sensor, System Sensor 2W-B, 2WT-B, 4W-B & 4WT-B - Installation Guide. 0 before performing maintenance of any kind. System Sensor BK-2WB Photoelectric i3 Series Smoke Detector, 2-Wire, White Brand: System Sensor ADI #:BK-2WB Model #: 2W-B Name: System Sensor BK-2WB Photoelectric i3 Series Smoke Detector, 2-Wire, White Plug-in detector line, mounting base included Large wire entry port In-line terminals with SEMS screws Product Overview Installation ease. It sounds like you may be experiencing a low battery issue possibly. 3. Copyright 2023 Honeywell International Inc. Notify the proper authorities when the system is back in service. (See Figure 4.). D initiating circuits require the use of a 2W-MOD for models 2W-B and 2WT-B. System Voltage Nominal: Access all of System Sensor's tools and software offerings. further simplified by the incorporation of features compatible with drywall Solid, After an initial power-up delay, the red and green LEDs will blink synchronously once every ten seconds. Whenever an alarm is detected by the System Sensor 2W-B, the smoke detector will show a solid red LED. System Sensor is pleased to provide this Strobe Coverage Calculator, formerly known as Equivalent Facilitation Calculator. Access a cross-reference document that covers AV notification appliances, from the previous SpectrAlert Advance line to the latest L-Series line. The EZ Walk loop test verifies the initiating loop wiring and provides maintenance or screen replacement. 2W-B Datasheet (PDF) - Systemsensor advanced ideas. The System Sensor 2W-B is a 2-wire smoke detector and a member of System Sensors i3 Series of photoelectric smoke detectors. Voltage Drop calculations for System Sensor AV products can be done using the Honeywell Online Tools for Fire (HOTFire) site. %%EOF The System Sensor COSMO-2W is a best-in-class i4 Series combination CO/Smoke detector is a 2-Wire carbon monoxide (CO) and smoke detection technology in a single, system-connected device. Gray. Authority Having Jurisdiction. This includes cleaning, maintenance or screen replacement. 2. Remove power from alarm control unit or initiating device circuits before installing detectors. We're here to help with any issues or questions. may also have other rights which vary from state to state. Models 2WT-B, and 4WT-B also feature a restorable, built-in, fixed temperature, (135F) thermal detector and are also capable of sensing a freeze. Do these detectors have a similar lifespan? The i3 Series 2W-B uses drift compensation technology and smoothing algorithms which prevent the smoke detector from becoming too sensitive as dust accumulates. InnovairFlex duct smoke detectors combine an impressive collection of innovations to greatly simplify HVAC system monitoring. from the end of the feed wire, inserting it into the proper base terminal, and for the detector to stabilize before testing. in the Style D initiating device circuit (IDC) configuration requires the use in accordance with the instructions, may cause harmful interference to radio communications. 3825 Ohio Avenue, St. Charles, Illinois 60174 This will get the device to stop sounding. System Sensor warrants its enclosed smoke detector to be free from defects in materials tightening the screw to secure the wire in place. current list of detectors and UL Listed compatible control units. A You can also remove the detector cover and the sensing chamber for convenient smoke detector cleaning. prevent a system from responding properly in the event of a fire. Applications Guide for System Smoke Detectors, which provides detailed information on detector spacing, placement, zoning, wiring, and special applications. FREE delivery Sat, Feb 11. After power up, allow 80 seconds In fact, the 2W-B is a System Sensor i3 series intelligent . You'll never be more than a mouse click away from the information you need to make informed decisions about our products and their capabilities. 1015 0 obj <>/Encrypt 1001 0 R/Filter/FlateDecode/ID[<493E40FFCF1D3F747B74E48D03207C10>]/Index[1000 51]/Info 999 0 R/Length 93/Prev 198552/Root 1002 0 R/Size 1051/Type/XRef/W[1 3 1]>>stream exclusion or limitation of incidental or consequential damages, so the above limitation LED should light within five seconds. When using the System Sensor 2W-B two wire smoke detector with a VISTA-20P or VISTA-21iP alarm control panel, you should wire the smoke detector to zone one. However, you can also use the 2W-B smoke detector with other alarm control panels, but you should verify compatibility with the manufacturer of the alarm control panel first. 1o)!2'1hg'0?,s1e*F 6S(Ft50 AKTX"897cOF 7 4. Unfortunately we do not support fire panels like the 32FB. Consult the dealer or an experienced radio/TV technician for help. 2WTA-B, or 2WTR-B) on Style D IDCs is to use a 2W-MOD2 module. r^ lC-kr$EG_ KD/T=[ $y`j"lOmX LX6F(F;x*+yj#xgUB?fH"U*zN84Vz D~m$y:67HqwZJ:RSYk4MU=';W(pg|s[pJTW/X '@GWSYm }Fs View a list of all System Sensor locations worldwide. SMOKE With. When the detector is in the alarm mode, the red LED latches on. alarm verification. System Sensor 2WTA-B I3 Series 4-Wire Conventional Photoelectric and 135F Fixed Temperature Thermal Detector with Built-in Sounder, 85 dB Sounder, Form C Relay, Isolated Thermal Sensor. detector to finish the power-up cycle (see Table 2). When the detector is in the alarm mode, the red LED latches on. 1050 0 obj <>stream Verified purchase: Yes | Condition: Pre-owned. 20 mA 12 Volt Systems Just fill out the form and click your area of interest. They were an easy mount adapted to our smoke detecting system. Figure 4: Recessed Test Switch Opening and SENS-RDR Position After all detectors have been installed, apply power to the alarm control of this Warranty shall be limited to the repair or replacement of any part of the smoke To view this information, simply choose a manufacturer and the appropriate model. : In a freeze, trouble condition, the red LED will blink once every 10 seconds, To measure the detector's sensitivity, the i, RDR Infrared Sensitivity Reader tool (see Figure 4) should be, Models 2W-B and 2WT-B also include an output that allows an. hbbd```b``6@$&"%H To measure the sensitivity of any i3 detector, the SENS-RDR displays the reading, in terms of percent-per-foot obscuration, within seconds. It should be straightforward if you do not need to wire the back plate. We offer conventional and intelligent products for smoke detection, heat detection, fire and CO combination detection, and multi-criteria / multi-sensor detection, as well as bases and accessories. I see other smoke detectors that claim a lifespan of 10 years and recommend replacement at that time. Wd]_c'F1p% NIB!! 5. endstream endobj startxref This system was used with Cox before, so no telling what all they did to it. List Price. Band Color. Connectivity. The LED indication must not be used in lieu of the tests specified under Testing. I will say that it came packaged correctly and it functions as designed, would buy again. By subscribing I give my consent to receive AlarmGrid e-mails about This notification is not a safety issue, but low battery warnings should be addressed promptly to avoid potential problems with system operations which may arise. Two-wire Figure 1: Mounting of Detector. Each zone provides enough stand by current (2ma) to power up to sixteen smoke detectors. When the sensing chamber gets too dirty and the 2W-B is no longer calibrated to the proper sensitivity, the smoke detector will alert you with a red LED that blinks every five seconds so that you can perform the necessary maintenance. . A couple of things to note before %PDF-1.6 % Light settings: The brightness sensor is activated, it automatically switches between daytime I am very happy with the purchase and while I only needed one I bought 2 to have one in reserve. : Installation of the 2W -B, 2WT -B, 4W -B, and 4WT -B detectors is simplified . applicable state and local codes, and any special requirements of the local 12/24 Two LEDs on the detector provide a local visual indication of the, After an initial power-up delay, the red and green LEDs will blink, synchronously once every ten seconds. System Sensor webinars provide relevant and timely information on products, market trends, and legislation. It would be hard to rate this product at one star unless it was somehow responsible for an unreported house fire. Heat Sensor (Model 2WT-B and 4WT-B): The 2W -MOD2 can. 1-800-SENSOR2, FAX: 630-377-6495 visual status indication at each detector. Weight: unit. are capable of generating a maintenance needed signal. Max. endstream endobj 473 0 obj <> endobj 474 0 obj <> endobj 475 0 obj <> endobj 476 0 obj <> endobj 477 0 obj <> endobj 478 0 obj <>stream Podcast; Latest Direct mount or to ceiling using drywall fasteners (Figure 2). List Price $134.00 Our Price $88.99 You Save $45.01 (34%) Fill out our feedback form! Wire connections are made by stripping approximately 14-inch of insulation from the mounting base without the use of a tool. Two-Wire Compatibility NOTE: For the above tests, the detector will reset only after the power source Deciding Whether to Use 2-Wire or 4-Wire Smoke Detectors. Standby Current: Low-Profile Plug-in Smoke/Heat Detector 800 Series System Sensor's 800 series detectors are 2-wire conventional profile plug-in detectors aimed to meet the performance criteria designated by UL. Height (including base): I still get the "shorted out keypad". When the alarm goes off, both keypads seem like they short out for a second (the display panel goes blank the ready and arm lights flash, and it makes a weird beeping noise) then starts the alarm tone at the keypads only. 100 Improper connections can 5.3 inches An overview of latest updates, essential resources, and webinars. $59.99. System Sensors intelligent and conventional modules are designed to help you meet a wide range of application requirements. for System Smoke Detectors, which provides detailed information on detector detector to be easily installed or removed. Ready to learn more? However, there is no guarantee that interference will not occur in a particular installation. System Sensor tools include a variety of software, drawings and calculators to help you effectively plan and prepare for your next fire safety system installation. All models incorporate a state-of-the-art optical sensing, chamber and an advanced microprocessor. 1. Do NOT Install Detectors in the Following Areas: In or near areas where particles of combustion are normally present such as kitchens; in garages (vehicle exhaust); near furnaces, hot water heaters, or gas space heaters. to 35 max. Follow the steps in the Tech Bulletin below to check your current firmware version and update your device firmware if needed.. With less intelligent smoke detectors, a dirty photoelectric chamber will results in false alarms. It sounds like a short problem somewhere in the smoke lines to me, but I am not sure. on the screen/sensing chamber with the arrow on the housing. Operating Voltage: 12/24 V non-polarized nominal, 8.5 min. This chart contains the current list of . After phoning System Sensors toll free number 800-SENSOR2 (736-7672) for a Return There is a red and green LED on the head of the 2W-B smoke detector. Table 2: Power-up Sequence for LED Status Indication* Figure 3a: Wiring Diagram, 2W-B and 2WT-B. 30 We're here to help with any issues or questions. System Sensor i3 series smoke detectors represent significant advancement in conventional detection. DSC NEO: System Sensor 2-wire smoke wiring and programming This video showcases the wiring and programming for 2-wire smokes on a DSC NEO security system. The 2W-B smoke detector works with most Honeywell alarm control panels including the VISTA-20P and VISTA-21iP as System Sensor is a subsidiary of Honeywell. best system performance, all wiring should be installed in separate grounded away from the detector. This latest software also includes an enhanced interface for increased ease of use. DIAMETER TOOL, Figure 5: Removing/Replacing Screen/Sensing Chamber INSTALLATION AND MAINTENANCE INSTRUCTIONS. To view our listings, please visit one of the following sites. 2. The detector will drop sensitivity back to the factory setting when it becomes more sensitive due to I will say that it came packaged correctly and it functions as designed, would buy again. any latin characters (a-z, A-Z) any numbers (0-9) special characters ("-", "_" and ". of smoke detectors. (135F) thermal detector and are also capable of sensing a freeze condition if View a list of all System Sensor locations worldwide. In order for this feature, to work properly, the chamber must never be opened while. Each i3 Series detector is supplied with a mounting base that can be mounted: 2.To a 312-inch or 4-inch octagonal box, or, 3.To a 4-inch square box with a plaster ring, or. 2.0 inches Ensure proper wiring and power is applied. into the test the incorporation of features compatible with drywall fasteners. For best system performance, all wiring should be installed in separate grounded conduit; do not mix fire alarm system wiring in the same conduit as any other electrical wiring. We're here to provide technical support for System Sensor products and service. way to insure proper operation of 2-wire i3 smoke detectors (2W-B, 2WT-B, Max. breach of this or any other Warranty, expressed or implied whatsoever, even if the loss System Sensor web site at www.systemsensor.com. or exclusion may not apply to you. Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/or applicable codes for specific information regarding the spacing and placement of smoke detectors. CHAMBER OPENING I am wondering if there is too much power connected to the panel for the sirens to sound. NOTE: To install units so that corresponding LEDs are lined up, refer to the In order for this feature to work properly, the chamber must never be opened while power is applied to the smoke detector. Operating Humidity Range: The microprocessor, allows the detector to automatically adjust its sensitivity back, to the factory setting when it becomes more sensitive due to, contaminants settling in its chamber. Please read thoroughly System Sensor manual A05-1003. The System Sensor 2W-B is a 2-wire smoke detector and a member of System Sensor's i3 Series of photoelectric smoke detectors. the listed limits, the red LED blinks once every five seconds. System Sensor two-wire smoke detectors are marked with a compatibility 1000 0 obj <> endobj Visit systemsensor.com for current product information, including the latest version of this data sheet. Max. Fill out the form and we'll contact you shortly. Wired. Please read thoroughly System Sensor manual A05-1003, Applications Guide for System Smoke Detectors, which provides, detailed information on detector spacing, placement, zoning, wir-, ing, and special applications. Developed and delivered by Honeywell industry experts, HBU training employs techniques and technologies to help your teams learn everything they can about our products. 50 A average Copyright 2023 Honeywell International Inc. The System Sensor 2W-B is a 2-wire smoke detector and a member of System Sensors i3 Series of photoelectric smoke detectors. 0.1 In or near areas where particles of combustion are normally present The System Sensor 2WTA-B is a 2-wire smoke and fixed heat sensor with a built-in sounder. NOTICE: This manual shall be left with the owner/user of this equipment. Green LED. Reorient or relocate the receiving antenna. When used with an i3 Series compatible control panel or the i3 Series 2W-MOD module (refer to installation manual D500-46-00), the 2W-B and 2WT-B are capable of generating a maintenance needed signal. 1. The 2W-B smoke detector works with most Honeywell alarm control panels including the VISTA-20P and VISTA-21iP as System Sensor is a subsidiary of Honeywell. 41F (5C) Alarm Current: Certain System Sensor SWIFT AV bases have the potential to generate a premature and erroneous low battery notification. System Sensors AV notification devices are the most versatile, easy to install, and cohesive line of audible visual (AV) notification appliances in the industry. The System Sensor 2W-B smoke detector has a sensing chamber that that will become dirty with dust over time. Before Installing If the detector is in need of maintenance because its sensitivity has shifted outside the listed limits, the red LED blinks once every five seconds. Once the mounting base is installed, the 2W-B smoke detector attaches to the base by simply inserting the head and turning it clockwise until it locks in place. has been made tamper resistant, use a small screwdriver to depress the square z7$m9ymnsx.}]{~{^^}ltW? diagrams. Near fresh air inlets or returns or excessively drafty areas. System Sensor two-wire smoke detectors are marked with a compatibility identifier located on the label on the back of the product. When mounting the i3 Series, ensure that the head is mounted to the correct base. Physical Specifications It can connect with a Honeywell VISTA System at Zone 1. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection. IMPORTANT: This detector must be tested and maintained regularly following NFPA 72 requirements. to a 2-wire base, and a 4-wire head will only mount to a 4-wire base. and workmanship under normal use and service for a period of three years from date Increase the separation between the equipment and receiver. General CLSS Tool Suite Discontinued Product Finder AV Audio Samples: AV Tones Calculator: AV Strobe Coverage Calculator: Voltage Drop Calculator: Sound Pressure Loss item 8 System Sensor 2W-B i3 Series 2-wire, Photoelectric Smoke Detector, 5.0 out of 5 stars based on 9 product ratings. In wet or excessively humid areas, or next to bathrooms with showers. MFR PART # 2W-B SYSTEM SENSOR | 2W-B i3 Series Detector, 2-wire, 12/24 V DC, with Base MFR PART # 2W-B PART # 674092 Spec Sheet Email Print Minimum 1 Each In Stock Details References Shipping Description Installation ease. Read here to learn the difference between smoke detectors and smoke alarms. All models incorporate a state-of-the-art optical sensing chamber and an advanced microprocessor. Preview PDF Download HTML 2W-B Datasheet (PDF) - Systemsensor advanced ideas. Features include a universal mounting plate with a preliminary snap-in feature to hold the product in place for the screw attachment, 7 field-selectable candela settings for wall and ceiling mount devices, and rotary switches to select horn tone and volume settings. Wiring Installation Guidelines At a minimum, cleaning should be performed annually. No. And today we're going to be adding two-wire smokes to our DSC Neo system. Our hardwired CO detectors with RealTest use electrochemical sensors to measure carbon monoxide levels and alert residents with a flashing Temp-4 signal alarm. detector counterclockwise. VIEW MODELS Beam Smoke Detection Multi-voltage conventional relays are used for high-current switching applications, such as fan and damper assembly control, door control, air handling unit controls, and other building system interfaces. To remove the detector from the base once it NFPA 72 requirements. endstream endobj 1001 0 obj <>>>/EncryptMetadata false/Filter/Standard/Length 128/O(19[nMM\\.9rvXbp)/P -1036/R 4/StmF/StdCF/StrF/StdCF/U(bH;^Soe9ACM )/V 4>> endobj 1002 0 obj <> endobj 1003 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 1004 0 obj <>stream POWER . switch opening; push and hold. The drop-in ceiling tile speakers, strobes and speaker strobes offer a complete turn-key solution that offers a cleaner and faster installation, reduced labor costs and lower risk than traditional AV notification appliances. They also answer your questions from the comfort of home or the office. Hayden here again from Alarm System Store. OVAL AREA OR AT THE For two-wire models 2W-B and 2WT-B, connect detectors only to compatible alarm control panels as identified by System Sensor's compatibility chart. Near fresh air inlets or returns or excessively drafty areas. While the drift compensation and smoothing algorithms make the 2W-B more advanced than other conventional smoke detectors, it will eventually need to be cleaned. 0.5 Amp @ 30 V AC/DC Therefore, the only If a detector fails any of the above test methods, its wiring should be checked BY THE WORD PAINT, PUSH RECESSED This chart contains the Each zone provides only enough alarm current (20ma) to power one smoke in alarmed state. System Sensor 2W-B Product Description: The System Sensor 2W-B is a i3-Series conventional, two-wire, photoelectric smoke detector. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must conduit; do not mix fire alarm system wiring in the same conduit as any other The heads and bases are clearly identified as either 2-wire or 4-wire. Direct mount or to ceiling using drywall fasteners (Figure 2). Wire connections are made by stripping approximately 14-inch of insulation from the end of the feed wire, inserting it into the proper base terminal, and tightening the screw to secure the wire in place. Models 2W-B and 2WT-B are 2-wire photoelectric smoke detectors; models 4W-B and 4WT-B are 4-wire photoelectric smoke detectors. Lets you hear all the different audio tones of the AV notification appliances, such as the temporal 3 and non-temporal for the electromechanical, 3.1KHz, 520Hz, as well as the chimes. When connected to the 2W-MOD2 loop test/ maintenance module or an i3 Ready (TM) panel, 2 wire i3 detectors can generate a remote maintenance signal when in a maintenance or freeze trouble condition. FREE delivery Mar 8 - 10. 46 | Microsoft VP Marcus Fontoura on Architecting Azure, the "World's Computer" 0:00 / 0:00. (if excessive electrical noise is present) All i3 Series detectors are designed to provide open area protection. of a 2W-MOD2 module. Trending price is based on prices over last 90 days. they work perfectly and make me feel much more comfortable while i am away. Access all of System Sensor's tools and software offerings. To measure the detectors sensitivity, the i3 Series Model SENSRDR Infrared Sensitivity Reader tool (see Figure 4) should be used. We are notifying you about EASE Evac as a service to our customers as it may simplify voice evacuation design. increase or alter the obligations or limitations of this Warranty. For convenience, the 2W-B mounting base can also be directly mounted to the ceiling using drywall fasteners. Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/or applicable codes for specific information regarding the spacing and placement System Sensors intelligent and conventional modules are designed to help you meet a wide range of application requirements. AT AN ANGLE ON THE 12/24 Volts Non-polarized into the base and lock into place with a click. This chart contains the current list of detectors and UL Listed compatible control units. Any 2-wire i3 smoke detector (2W-B, 2WT-B, 2WTA-B, or 2WTRB) wired the latest products, and offers. The i3 Series heads and bases are keyed so that a 2-wire head will only mount Alarm Reset Time: Blink 10 sec Models: 2W-B, 2WT-B, 4W-B, 4WT-B. A05-0395-007 4/09 #2132 SpectrAlert Advance Dimensions Model Description Wall Horn Strobes P2R* 2-Wire Horn Strobe, Standard cd, Red The System Sensor 2WTA-B is a 2-wire, photoelectric i3 smoke detector with thermal sensor and built-in sounder. In dusty, dirty, or insect-infested areas. PipeIQ is the free all-in-one system design, configuration, and monitoring software for the System Sensor FAAST line of aspirating smoke detectors, including the new FAAST XT. A, System Sensor i3 series 2w-b, 2wt-b, 4w-b, 4wt-b Data Sheet. 45 Maximum Initial N/A N/A 120 System Sensor 2851B A Photo B101B / B107B A 120 System Sensor 2851BTH A Photo / Therm. 2. The 2W-MOD can Ep. B101B / B107B A 120 system or the conduit, both LEDs will blink for up to 4 minutes before displaying detector status (see Table 2). When I put the system in alarm mode and set it off, the panels still have the same behavior and the sirens (not the keypad alarm) do not sound. heaters, or gas space heaters. 4. Max. System connected smoke detectors may be successfully deployed for many years, and no scheduled end of life replacement is prescribed. Initial LEDStatus Indication (See Figure 6.) of manufacture. Table 2: Power-up Sequence for LED Status Indication*, (if excessive electrical noise is present). item 2 System Sensor 2W-B I3 Series 2-Wire Photoelectric Smoke Detector, item 3 NEW System Sensor 2W-B 2WB i3 Series 2-Wire Photoelectric Smoke Detector Fire, item 4 System Sensor 2W-B i3 Series 2-wire, Photoelectric Smoke Detector, item 5 NEW System Sensor 2W-B 2WB i3 Series 2-Wire Photoelectric Smoke Detector Fire.
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