#1 Home Improvement Retailer

Internet # 301627165

Model # 21029623

Store SKU # 791898

Firex Plug-in Carbon Monoxide, Propane, Natural and Explosive Gas Detector, 9-Volt Battery Backup & Digital Display

$54.97
Apply Now
Pay $29.97 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • Plug-in directly to a 120V outlet in your home
  • 9-Volt alkaline battery provides protection during power outages
  • Digital LED display shows the level of CO or states "GAS"
  • View More Details
Store
0 in stock
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
caret

Product Details

Protect your family with the Kidde Firex Carbon Monoxide, Propane, Natural and Explosive Gas Detector, Hardwired with Battery Backup. The easy to install electrochemical Kidde Firex Carbon Monoxide, Propane, Natural and Explosive Gas Detector, operates by plugging the carbon monoxide alarm into a typical wall outlet. A 9-volt alkaline battery provides backup during power outages. Using electrochemical sensor technology, the Kidde Firex Carbon Monoxide, Propane, Natural and Explosive Gas Detector alerts to poisonous, invisible, combustible gases. The Kidde Firex Carbon Monoxide, Propane, Natural and Explosive Gas Detector has 3 LED lights that indicate: power connection, if the alarm senses combustion, fire, or smoke, or if the alarm is activated. The display will have a red dot in the lower, right corner that will blink to indicate normal operation. The gas alarm includes a test button that will electronically simulate the presence of CO or gas when pushed. When the unit detects carbon monoxide the alarm pattern will be 4 quick beeps and show in the display the carbon monoxide concentration in Parts Per Million. When the unit detects gas, the word "GAS" will be displayed and an alarm will sound. UL Certified with a 5-year limited warranty. Meets requirements of UL 2034.
  • Shop all Kidde fire safety products here
  • Plug-in with a 9-volt battery back-up
  • Test/reset button - tests the smoke alarm circuitry & resets memory after an alarm has sounded
  • No low battery chirps; internal timer alerts you to replace the entire unit after 10 years
  • 85 decibel fire alarm alerts of fire
  • Electrochemical sensor technology - detects invisible, poisonous carbon monoxide & other combustible gases
  • Red dot in lower right corner indicates power is connected
  • Digital display provides a readout of gas or carbon monoxide detection in parts per million (PPM)
  • Replacement Chirp - alerts to replace alarm after 10 years of operation
  • Ensure whole home family protection by placing 1 fire detector and carbon monoxide detector on each level of your home, in your bedroom, & other locations where required by law
  • Industry experts (such as the NFPA), recommend that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fires that can occur within the home.
  • *Check with your state and local fire and Building/Safety codes for specific information regarding smoke & Carbon Monoxide Alarms.
  • Carbon monoxide detector utilizes an electrochemical sensor to detect fire hazards and sounds an 85 db alarm when a hazard is detected
  • UL/CSFM Ref. Kidde Part i12040
  • Shop all Kidde Carbon Monoxide Detectors
  • Prepare your home against carbon monoxide
  • Protect your home and family from fire damage using these preventative tips
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
caret

Specifications

Dimensions: H 6.1 in, W 3.8 in, D 1.8 in

Dimensions

Product Depth (in.)1.8 inProduct Height (in.)6.1 in
Product Width (in.)3.8 in

Details

Alarm TypeCarbon MonoxideAlarm/Detector FeaturesBattery Back-Up, Digital display
Alert TypeSirenBattery Type Required9-volt
Commercial/ResidentialResidentialConnector/Contact TypeNone
Fixed or portableFixedIncludedBatteries
Pack Size1Power SourcePlug-In
Returnable90-DayVoltage (V)120

Warranty / Certifications

Certifications and ListingsUL Listed
caret

Questions & Answers

140Questions
caret
Q:how do you open the battery door?
by|Dec 1, 2023
0 Answer
Answer This Question
caret
Q:Will this detect a leak from a gas stove?
by|Nov 26, 2023
1 Answer
Answer This Question

A:  Hello. Yes, it will. Mounting the CO and Gas alarm should depend on the type of explosive gas you intend to detect: If you are a user of natural gas, mount your CO and Gas alarm high on the wall (no closer than six inches from the ceiling) to ensure the earliest opportunity to detect a natural gas leak. If you are a user of propane, mount your CO and Gas alarm near the floor to ensure the earliest opportunity to detect a propane leak. This alarm will only indicate the presence of carbon monoxide, natural gas or propane at the sensor. Carbon monoxide, natural gas or propane may be present in other areas. The installation of this device should not be used as a substitute for proper installation, use and maintenance of fuel burning appliances, including appropriate ventilation and exhaust systems. It does not prevent CO or gas from occurring, nor can it solve and existing CO or gas problem.

by|Nov 28, 2023
    caret
    Q:What is the extra chord that is attached to the plug used for
    by|Nov 8, 2023
    1 Answer
    Answer This Question

    A:  Hello. That is the built-in extension cord. The plug comes out of the back of the alarm. There are tabs on either side of the plug. Spread the tabs away from the plug with thumbs and carefully turn the alarm over. This will allow the plug to slide out. With the plug removed, pull the power cord out and remove the twist tie. With the power cord extended, press the last few inches of the of the power cord into the groove under where the power cord was stored until the cord becomes taught and lays flat in the groove. Then you can put the battery door back on and you have a a corded alarm.

    by|Nov 9, 2023
      caret
      Q:Mine is at end of life. What is proper disposal?
      by|Nov 2, 2023
      1 Answer
      Answer This Question

      A:  Hello. You should be able to dispose of it as you would normally dispose of electronics in your local area per your local disposal codes. Check with your local waste and recycling.

      by|Nov 8, 2023
        Showing 1-4 of 140
        caret

        Customer Reviews

        4.4 out of 5
        (621)
        • 4.4
          out of 621 reviews
        • 85% recommend this product
        Filter by:
        Showing 1-10 of 621 reviews
        Great product to protect your family! Simply unpack and plug in, inexpensive insurance!
        by
          Doesn't work to detect natural gas! As a test before installing it I held it over an unlit gas burner for enough time to smell it strongly (yes I have an exhaust). This detector NEVER went off! I even plugged it in to eliminate the battery. So I had the battery in it and the next day is started beeping. I pressed the reset button and it went off and said GAS GAS. I'd be dead before I heard that. Returning it and notifying Public Safety Commission. Can't call or email Kidde as no info or instructions were in the package.
          by
            3 found this review helpful
            This new one is to replace the current that died...
            This new one is to replace the current that died after 2 years in use. It was supposed to last until 2025 (I marked the date on product). Can I get a refund for the old one that just died?
            by
            Response from Kidde ExpertJan 12, 2023
            The old one may be still under warranty and a replacement may be possible or we may be able to help you to get this old one working again. Call us with the old unit in hand and new battery so we can troubleshoot it and figure out what is going on. Please note that this is one of the few alarms we have that don't have a 10 year life. This alarm has a 7 year lifespan and will go to END after 7 years of use.
            • Verified Purchase
            1 found this review helpful
            These detectors are the best! They provide security for car...
            These detectors are the best! They provide security for car on monoxide AND gas. Easy to install and they have options for different situations.
            by
            • Verified Purchase
            Unreliable
            I used this in an apartment for 2 years without issue. I moved and stored it in sealed bin, without the battery installed, in sealed bubble wrap. I tried to use this in my new apt and now it beeps every 30 seconds with an L6 code even though it now has a new battery and has been "reset". 4 year old piece of junk. Mfg Dec 15, 2016 Issue Code 0009088
            by
            Response from Kidde ExpertJun 17, 2021
            Hello Mike,
            Please call Kidde support at 1-800-880-6788 Open Monday through Friday from 8:00 AM – 8:00 PM EST Saturday 9:00 AM – 3:00 PM EST. They're the experts and will be able to assist. Thank you.
              3 found this review helpful
              Works as described....
              Works as described.
              by
              • Verified Purchase
              1 found this review helpful
              My first Kidde Plug-In Carbon Monoxide and Explosive Gas Detector with 9V Battery Backup and Digi...
              My first Kidde Plug-In Carbon Monoxide and Explosive Gas Detector with 9V Battery Backup and Digital Display lasted almost 8 years and comes with a 5 year warranty. This is my 2nd unit. I like it since it not only detects carbon monoxide but also propane and natural gas which many others do not. I also like that it can operate using AC power or 9v battery. It can also be mounted on a wall. I highly recommend and hope it will still be available when this one reaches end-of-life in 8 or 9 years. Well worth the money for peace of mind and safety features.
              by
              • DIY
              • Verified Purchase
              • Recommended
              6 found this review helpful
              Product meets all expectations except color. All photos show detector in white. Store only offe...
              Product meets all expectations except color. All photos show detector in white. Store only offered in gray. Still appears to function well, just less visually appealing.
              by
              • Verified Purchase
              • Recommended
              I only gave a five-star review despite the fact that there is no easy practical way to test this ...
              I only gave a five-star review despite the fact that there is no easy practical way to test this device for actual function using real gas or CO. Set-up was easy and it appears to be functioning correctly. It is installed in the home of an elderly couple who have just recently converted to an LGP kitchen range. Hopefully this detector will never be needed, but it does provide additional peace of mind protection should a problem arise with the range or they accidentally leave a vehicle running in the attached garage. Big plus is that the alarm siren is loud and at a pitch even people with considerable hearing damage as myself can hear easily.
              by
              • Pro
              • Verified Purchase
              • Recommended
              4 found this review helpful
              Easy just plug in
              Easy just plug in
              by
              • Verified Purchase
              • Recommended
              Showing 1-10 of 621 reviews

              Compare Similar Items

              current product

              Power Source

              Plug-In

              Hardwired

              Hardwired

              Alarm/Detector Features

              Battery Back-Up, Digital display

              Battery Back-Up, Hush Feature, Interconnected

              Battery Back-Up, Interconnected, Tamper Resistant

              Pack Size

              1

              1

              1

              1