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Get Ultimate Protection with an Industrial-Grade Carbon Monoxide Alarm
Interlogix 250-CO SafeAir Carbon Monoxide Detector
Interlogix 250-CO SafeAir Carbon Monoxide Detector
Interlogix 250-CO SafeAir Carbon Monoxide Detector
Item# 79447
Free shipping on orders over $175 - See Details


  • Uses highly reliable, commercial-grade, electro-chemical sensing technology
  • Built-in trouble/power supervision relay
  • 12 or 24VDC operation and 150mA relay contact
  • Long-life six-year sensor
  • Transmits sensor end-of-life to the control panel/central station if conncected
  • Adapter plate makes replacing GE 240-COe CO detector simple

Essential Info

Don't let the silent killer known as carbon monoxide (CO) harm yourself or your family. Protect yourselves from this odorless, colorless and potentially deadly gas with a carbon monoxide detector / alarm built to the same high standards of those that protect industrial plants and hospitals! A built-in electrochemical sensor continuously monitors for CO and is unaffected by other airborne substances or temperature variations. Additionally, this carbon monoxide detector's quick response time, fast clearing time and superior false alarm immunity tower above the reliability levels of other CO alarms.


What's Included

  • Residential Carbon Monoxide Detector and Alarm
  • More Info

    This life-saving carbon monoxide detector device is designed specifically for use with monitored security systems. When it detects potentially harmful levels of CO, it emits a loud 85dB audible alarm and alerts security monitoring personnel who can summon help from local paramedics and fire departments.

    The carbon monoxide alarm unit's contoured design and small size make it perfect for residential applications. A low 8mA current draw eliminates the need for an additional power supply. The carbon monoxide detector sensor connects to any zone of a hardwired security system via four-conductor cable.

    Note: Summoning of fire personnel or medical help requires optional service from a commercial third-party monitoring company, which typically charges a nominal monthly fee.



    Manufacturer Product No.:250-CO
    Input voltage:12V DC, supplied by a UL Listed control panel
    Current consumption:Standby: 8mA
    Alarm: 60mA max
    Relay contact:50mA @ 12V DC
    Electrical configuration:NO, NC
    CO alarm level:COc: 70 ppm/60-189 minutes
    Operating temperature:40F to 100F (4.4 to 37.8C)
    Relative humidity:15 to 90% non-condensing
    Dimensions:Width:2.7" (6.9cm)
    Length: 6.0" (15.2cm)
    Depth: 1.4" (3.6cm)
    Weight:4oz (114g)
    Altitude:+/- 3,000 feet for best performance


    37 Ratings
    5 star: 57%  (21)
    4 star: 27%  (10)
    3 star: 5%  (2)
    2 star: 3%  (1)
    1 star: 8%  (3)
    Average Customer Rating
    (37 customer ratings)
    Share your thoughts with other customers
    GALDINO -- knights landing, CA   3/12/2012
    Simple but yet complex unit, thanks Homesmart staff & shipping dept..(GINO) GRANITE BAY CA,
    MICHAEL -- woodstock, CT   1/16/2011
    This is not the unit that was pictured in the ad. I was replacing the existing unit and wanted the same. The new unit works, however the hole pattern is different. The new unit did not cover the existing hole pattern so I had to repair and touch up the wall.
    LARRY -- gray, ME   4/7/2010
    This was a replacement device and it worked perfect. Thank you
    JOHN -- summit, NJ   2/26/2010
    Was sent updated version and while I think it is working properly, the green light is still blinking. I think it should be a solid green. Order processing and shipping was fine.
    LARRY -- east brunswick, NJ   2/7/2010
    DAVID -- guilford, CT   1/8/2010
    Good price. Quick delivery. Installing this CO detector myself saved me a $200 service charge.
    KEVIN -- melville, NY   12/21/2009
    Great product (peace of mind) and easy to install. My previous one lasted 5 years and beeped accordingly at the end of its life. Replacing with a new one was a snap.
    CAROL -- ormond beach, FL   11/28/2009
    Arrived on time. It was a newly manufactured CO detector which is important due to its 5 year life span.
    ALBINO -- mineola, NY   10/15/2009
    very easy to install
    GAYLE H. -- excelsior, MN   10/5/2009
    This is the only hard-wired CO detector that I could use to replace the existing ones in our house. After 5 years the sensors go bad and the unit needs to be replaced. I was very happy to find them from SmartHome and they were quite easy to replace.
    DEBRA -- atlanta, GA   10/3/2009
    Nice alarm but be aware that the sensor will deplete in about 5 years and have to be replaced.
    GERRY -- cohoes, NY   10/1/2009
    This item replaced one that was installed when I bought the house 5 years ago. It was easy to install but be required a capacitor that was part of the original unit but not present in the unit I received. Once I added the capacitor from the original unit, this unit worked perfectly.
    KEVIN -- cupertino, CA   9/16/2009
    Ordered as a replacement for one that went EOL. Installed and worked as expected.
    CHARLES -- akron, OH   8/14/2009
    I got 3 of the exact same CO detectors that are already in our house. The installation instructions were adequate and I have installed 2 of them with no problem. I'm happy, but my goals weren't real complicated.
    Safere -- New York   6/7/2009
    I just had it replaced by my alarm company and he indicated there is a substance iniside that is used to detect the Carbon Monoxide and it gets depleted and renders the alarm useless. He charged $160, next time I am ordering this and doing it myself
    WILFORD -- lake wylie, SC   5/25/2009
    Operates as advertized. A bit slow on shipping.
    ROSA -- saddle river, NJ   7/7/2008
    product does not seem to last more than 4 years, need another one replaced
    DERREL -- washington, DC   3/28/2005


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