Showing 13–24 of 250 results

  • temperature and security sensor

    System Sensor 5622 S.SENSOR 2-CIRCUIT 194F FIXED-

    $53.73

    Only 20 left in stock

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  • System Sensor MHW SpectrAlert Advance Mini-Horn 12/24V, White

    System Sensor MHW SpectrAlert Advance Mini-Horn

    $30.00

    In stock

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  • reversing relay

    SYSTEM SENSOR RRSMOD REVERSE RELAY MODULE FOR i3

    $62.66

    In stock

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  • indoor ceiling horn strobe

    System Sensor PC2WL Horn Strobe, Ceiling Mount

    $70.20

    In stock

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  • ceiling speaker strobe

    System Sensor SPSCWL Ceiling Mount Speaker Strobe, Clear Len

    $81.27

    In stock

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  • indoor speaker strobe

    System Sensor SPSWL Wall Mount Speaker Strobe, Clear Lens

    $76.69

    Only 9 left in stock

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  • alarm bell

    System Sensor SSM24 Series Alarm Bell

    $59.65 – $132.97
    6"
    10"

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  • System Sensor DNR Innovairflex Intelligent Non-Relay Duct Sm

    $273.11

    Only 20 left in stock

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  • 120v selectable output

    System Sensor P2RHK-120 Outdoor 120V Selectable Output Horn

    $145.80

    Only 10 left in stock

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  • photoelectric smoke detector

    System Sensor 4WTAR-B 4wire photo w/therm Detector

    $85.10

    Only 14 left in stock

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  • pc2rk horn strobe

    System Sensor BK-PC2RK Outdoor Ceiling Horn Strobe

    $164.14

    In stock

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  • sync circuit module

    System Sensor MDL3R SpectrAlert Advance Sync Circuit Module

    $91.70

    Only 1 left in stock

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