Showing 49–64 of 362 results

  • smoke detector with thermal sensor and sounder

    System Sensor 4WTA-B i3 Smoke Detector w/ thermal sensor and

    $80.49

    In stock

    •  Red and green LEDs to simplify local status indication during power-up, standby, alarm, maintenance, and freeze trouble conditions
    • Installer-friendly base and plug-in design
    • Form C relay
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  • 4 wire photoelectric detector

    System Sensor 4WT-B Photoelectric i3 Series Smoke Detector,

    $68.14

    In stock

    • Provides wide-angle red and green LED indicators for instant inspection of the detector’s condition
    • Plug-in detector line, mounting base included
    • 135°F fixed thermal sensor.
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  • System Sensor 5621 135-F Fixed Temperature rate of rise

    System Sensor 5621 135-F Fixed Temperature rate of rise

    $44.28

    In stock

    The 5600 series offers a full-line of configurations to acco mmodate a broad range of applications.
    To satisfy a variety of installation needs, the 5600 series easily mounts to single-gang and octagonal back boxes
    The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.

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  • System Sensor COSMO-2W i4 Series, 2-Wire Carbon Monoxide (CO) and Smoke Combination Detector

    System Sensor COSMO-2W i4 Series, 2-Wire Carbon Monoxide (CO

    $119.59

    In stock

    The 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.

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  • System Sensor COSMO4W

    System Sensor COSMO4W

    $126.49

    In stock

    • 4-wire module is compatible with COSMO-4W combination detectors and 4WTA-B smoke detectors
    • Easily integrates up to 12 compatible detectors to a wide range of control panels
    • Sends distinct smoke and CO signals from i4 detectors to the panel
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  • plug in detector

    SYSTEM SENSOR 2D51 4wire photo sensor

    $94.75

    In stock

    • Listed to Underwriters Laboratories 268A specifically for use in no-flow/low-flow air-handling systems.
    • Accepts 24 or 120V supply voltage
    • Two LEDs blink in standby
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  • photoelectric smoke detector

    System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke

    $56.18

    In stock

    • Plug-in detector line, mounting base included
    • Large wire entry port
    • In-line terminals with SEMS screws
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  • photoelectric smoke detector

    System Sensor 2WTA-B Photoelectric i3 Series Smoke Detector,

    $75.04

    In stock

    • Plug-in design (base included)
    • Isolated thermal sensor
    • Provides wide-angle red and green LED indicators for instant inspection of the detector”s condition
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  • rate of rise heat detector

    System Sensor 5602 194F Fixed Temp/Rate-of-Rise, Single-Circ

    $29.04

    In stock

    • The 5600 series offers a full-line of configurations to accommodate a broad range of applications
    • To satisfy a variety of installation needs, the 5600 series easily mounts to single-gang and octagonal back boxes
    • The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.
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  • fixed temperature heat detector

    System Sensor 5603 135F Fixed Temp, Single-Circuit Mechanica

    $32.15

    In stock

    • The 5600 series offers a full-line of configurations to accommodate a broad range of applications.
    • To satisfy a variety of installation needs, the 5600 series easily mounts to single-gang and octagonal back boxes
    • The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.
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  • fixed temperature heat detector

    System Sensor 5604 194F Fixed Temp, Single-Circuit Mechanica

    $33.02

    In stock

    • The 5600 series offers a full-line of configurations to accommodate a broad range of applications.
    • To satisfy a variety of installation needs, the 5600 series easily mounts to single-gang and octagonal back boxes
    • The 5600 series provides clear markings on the exterior of the unit to ensure that the proper detector is being used.
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  • System Sensor 2WT-B Photoelectric i3 Series Smoke Detector, 2-Wire, 135F Fixed Thermal Sensor, White

    System Sensor 2WT-B Photoelectric i3 Series Smoke Detector,

    $64.39

    In stock

    System Sensor 2WT-B is a 2-wire, photoelectric i3 smoke detector with a 135°F fixed thermal sensor.

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  • indoor selectable frequency sounder

    System Sensor HRL-LF L-Series 2-Wire, 24 Volt, 520Hz, Wall S

    $69.29

    In stock

    • 520 Hz ± 10% square wave tone, NFPA compliance
    • Nominal Voltage Low Frequency Sounder Regulated 24 DC/FWR1
    • Rotary switch for High/Low, Temp3, Temp4, and Continuous settings. Coded setting.
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  • System Sensor MHW SpectrAlert Advance Mini-Horn

    System Sensor MHW SpectrAlert Advance Mini-Horn

    $33.10

    In stock

    • Offers high and low volume settings, and temporal or non-temporal tones
    • Can be mounted to single gang back boxes for aesthetically sensitive applications
    • Operates between 32 and 120 degrees Fahrenheit from a regulated DC or full-wave rectified, unfiltered power supply
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  • selectable output horn outdoor strobe

    System Sensor P2RHK SpectrAlert Advance Outdoor SelectableOu

    $96.89

    In stock

    • Weatherproof per NEMA 4X, IP56
    • Compatible with System Sensor synchronization protocol and legacy SpectrAlert products
    • Plug-in design with minimal intrusion into the back box
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  • reversing relay

    SYSTEM SENSOR RRSMOD REVERSE RELAY MODULE FOR i3

    $62.15

    In stock

    • Is compatible with 2- and 4-wire i3 detectors equipped with a sounder
    • Allows i3 detector silencing from the panel or keypad
    • Is usable with bell/alarm, alarm relay, or NAC outputs
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