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Contact Closure / Relay
DSC Power Security Systems
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For Use with DSC Smoke/Heat Sensor
DSC RM-1 Power Supervision Relay For Smoke And Co Sensors
DSC RM-1 Power Supervision Relay For Smoke And Co Sensors
DSC RM-1 Power Supervision Relay For Smoke And Co Sensors
Item# 7505PSR
Price: Normally $9.99 
Hot Deal $8.68
Free shipping on orders over $175 - See Details


  • Color-coded wire leads
  • Works with any security system requiring power supervision

Essential Info

This four wire, power supervision relay is used with home security systems with a fire alarm control unit and smoke detector. The supervision relay is installed at the end of the detector power circuit. A break in the detector power circuit or a loss of power de-energizes the power supervision relay, opening the contacts and causing a trouble annunciation at the fire alarm control unit. Includes seven-inch color-coded leads (red, black, yellow, green, white).

What's Included

  • Power Supervision Relay - RM-1
  • More Info

    This is designed to work with the DSC Hardwired Smoke & Heat Sensor (#7497R)



    DSC Product No.:RM-1


    8 Ratings
    5 star: 88%  (7)
    4 star: 0%  (0)
    3 star: 12%  (1)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (8 customer ratings)
    Share your thoughts with other customers
    RODNEY S -- walnut creek, CA   6/3/2011
    The relay worked as it was suppose to do. Thanks
    DARREL -- rogersville, MO   3/2/2009
    Works great,as advertised
    JORGE -- mayaguez, PR   11/15/2006
    I ordered two, broke one of them and ordered a replacement. They work as expected, great customer support from Smarthome!
    Paul J. Sonnleitner -- nyc, NY   7/21/2006
    Works great, but be careful when using w/HAI Omni products as the color code on the relay wires doesn't match the presumed color code in the HAI install manual; the HAI manual says use the green and yellow wires to connect the zone signal wires but the white (common) and green (NC while contact engaged) wires should be used instead; the yellow wire (NO while contact engaged) should remain unattached.
    WILLIAM -- fairfax, VA   9/14/2004
    Perfect, Item was exactly what I needed for my security and fire system
    ALAN -- cary, NC   8/12/2004
    As described
    MARTIN -- sandown, NH   2/25/2004
    Works as designed

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