Showing 49–64 of 363 results

  • remote annunciator

    System Sensor Apa151 Remote Annunciator

    $68.99

    Only 1 left in stock

    • Provides an audible alarm signa
    •  Red LED to indicate alarm status
    • Green LED to indicate power status
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  • selectable output horn

    System Sensor – US HWL Selectable Output Horn

    $47.50

    In stock

    • 520 Hz ± 10% square wave tone, NFPA compliance
    • Tamper-resistant construction with Plug-in design with minimal intrusion into the back box
    • Horn rated at 88+ dBA at 16 volts and Rotary switch for horn tone and two volume selections
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  • System Sensor 4WB i3 4-wire photo detector

    $64.69

    In stock

    • Provides wide-angle red and green LED indicators for instant inspection of the detector’s condition
    •  Offers a number of intelligent features to simplify testing and maintenance
    • Plug-in detector line, mounting base included
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  • smoke detector with thermal sensor and sounder

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

    $82.79

    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

    $122.58

    In stock

    • Single device for CO and smoke detection that uses less Wiring and fewer junction boxes
    • Compatible with a Wide range of control panels with the use of the required i4 Interface Module
    • Easily integrates up to 12 compatible detectors to a Wide range of control panels
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  • System Sensor COSMO4W

    System Sensor COSMO4W

    $129.64

    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

    $96.00

    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,

    $77.90

    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

    $30.53

    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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  • Sale! fixed temperature heat detector

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

    Original price was: $32.15.Current price is: $31.09.

    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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  • Sale! fixed temperature heat detector

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

    Original price was: $33.02.Current price is: $31.09.

    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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  • temperature and security sensor

    System Sensor 5622 Temperature and Humidity Sensor with Alar

    $46.58

    In stock

    • Multiple configurations.
    • Installation flexibility
    • Visual identification.
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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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