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Alert System Type
Smoke / Fire / Carbon Monoxide
Sensor Type
Smoke / Heat
Contact Closure / Relay
Ease of Installation
Intermediate (Installs < 60 minutes)
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The Ultimate in Fire Protection!
Smoke and Heat Detector with End-of-Line Relay
Smoke and Heat Detector with End-of-Line Relay
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Detector Dimensions
Smoke, Heat Detector w/End-of-Line Relay
Item# 7309
Price: Normally $89.99 
Hot Deal $58.95
Open Box (Qty:6) $51.38 ea - Add to cart
Free shipping on orders over $50 - See Details


  • Connects to a hardwired security system for an incredible degree of fire protection
  • Self-diagnosing feature alerts you if any maintenance is required
  • Triggers a loud 85dB siren AND sends an alarm signal to your security system
  • Activated by smoke or fast-rising temperatures

Essential Info

Don't let your family or home be endangered by fire! Protect them from catastrophic fires with an ultra-reliable smoke detector that connects to your security system and even supplies its own built-in power supervision relay. Standard hardwired smoke detectors for security systems are good, but usually require a separate power supervision relay to ensure proper operation. But this powerful unit has the relay built in. Combine that with its self-diagnosing feature that continually monitors its own sensitivity and operational status, and you'll have a failsafe fire warning system with a reliability level that simply can't be matched.


What's Included

  • Smoke and Heat Detector with End-of-Line Relay
  • More Info

    This life-safety device is designed to be hardwired via 4-conductor cable to a monitored or standalone security system. When it detects smoke, it triggers a loud 85dB audible siren and sends an alarm condition to the control panel. If the security system is monitored by a third-party monitoring company, security personnel can summon the local fire department to respond. It's the perfect way to protect your house whether you're away from home or sleeping soundly.

    This unit should be connected to a home security system as the last smoke detector of a multi-detector zone. This is important because if power is lost to one of the smoke detectors on the zone, and no power supervision relay is installed, the security control panel will still "see" the end-of-the-line resistor and would not indicate trouble. But this smoke detector eliminates that problem, ensuring that you'll be alerted to maintenance requirements before it's too late.



    Manufacturer Product No.:449CSTE
    Siren Volume:85dB at 10 ft. (305cm)
    Heat Detector - Fixed Temperature/Rate of Rise:135°F & +/- 5°F (57.2°C +/- 2.8°C), 15°F/min & >104°F (8.3°C/min & >40°C)
    Operating Temperature Range:32°F to 120°F (0°C to 50°C)
    Operating Humidity Range:0 to 95% RH
    Voltage:8.5-33V DC
    Dimensions:6.1" (15.5cm) diameter x 1.85" (4.70cm) height


    Detector Dimensions       
    Detector Dimensions       


    7 Ratings
    5 star: 86%  (6)
    4 star: 14%  (1)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 0%  (0)
    Average Customer Rating
    (7 customer ratings)
    Share your thoughts with other customers
    DALE -- spencer, OK   9/5/2011
    Installed easy. Especially like the EOL relay that is built-in. Now I will know what zone is sounding. Have not had a fire to tell if they work.
    DALE -- spencer, OK   8/23/2011
    Easy to install, but don't know about how well they work, have not had a fire to test them with.
    KEVIN -- lakeland, FL   4/19/2011
    Excellent product. Installed easily with my M1Gold system. Integrated relay means nothing else to buy, just wire it in and go.
    MICHAEL -- erie, PA   8/23/2003
    Exactly what I ordered, correct info online and prompt shipping. Installation was a snap. Overall excellent experience. Thank You, Mike
    SCOTT -- santa rosa, CA   8/17/2003
    Everything on Smarthomes side was as good as ever, but when the shipper dropped off the box, it was crushed. I tested the smoke detector and it worked, but no thanks to the shipper.

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