#1 Home Improvement Retailer

Internet # 206499379

Model # 21027465

Firex Carbon Monoxide Detector, Battery Operated with Digital Display, CO Detector, 2-Pack

Includes 2 units ($18.42 /unit)
$36.84
Apply Now
Pay $11.84 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • Battery-operated carbon monoxide alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Digital display updates CO level in PPM every 15 seconds
  • View More Details
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
caret
Product Details
  • Battery-operated carbon monoxide alarm; no hardwiring required
  • Change AA batteries every 6 months to avoid low battery chirp
  • Digital display updates CO level in PPM every 15 seconds
About This Product

The Kidde Nighthawk battery operated carbon monoxide alarm is an easy to install unit that provides reliable protection against the dangers of carbon monoxide. Digital display feature adds an advanced level of protection showing CO levels in PPM allowing you to see if levels change. The Nighthawk DC Digital alarm has a small, sleek design that is suitable for all living areas and has a 10-year limited warranty.

Product ID #: 206499379Internet #: 047871267514Model #: 21027465
caret

Specifications

Dimensions: H 3.0 in, W 5.0 in, D 1.5 in

Dimensions

Product Depth (in.)1.5 inProduct Height (in.)3.0 in
Product Width (in.)5.0 in

Details

Alarm/Detector FeaturesDigital display, Hush Button, Tamper ResistantAlert TypeSiren
Battery Type RequiredAACommercial/ResidentialHome
Connector/Contact TypeNoneFixed or portablePortable
IncludedBatteriesPack Size2
Power SourceBatteryReturnable90-Day
Voltage (V)4.5

Warranty / Certifications

Certifications and ListingsUL Listed
caret

Questions & Answers

34Questions
caret
Q:Are these in compliance w/ NFPA 720 and UL 2075? Is so, where is the reference? As I been required to obtain these. Thanks...
by|Jan 10, 2023
1 Answer
Answer This Question

A:  Hello.NFPA 720 was withdrawn at the NFPA Annual 2018 revision cycle. NFPA 720 requirements have been incorporated into NFPA 72. The Council voted to approve the withdrawal of NFPA 720 on August 14, 2018. This alarm is NFPA 72 and UL 2034 compliant, though NOT UL 2035.

by|Jan 12, 2023
    caret
    Q:If the red light is on is it working?
    by|Jan 4, 2023
    3 Answers
    Answer This Question

    A:  Typically, both CO and smoke alarms will display a GREEN light if the unit is "working". RED lights typically mean either that the alarm has been activated, or that there is an issue with the alarm. You should always save the pamphlet that comes with smoke alarms and with CO alarms. They contain information as to what both the color of the lights mean, and what their "flashing" sequence indicates. If you do not have the pamphlet from the unit, contact the manufacturer who will answer any questions you have, and may even replace the unit if it is not functioning properly.

    by|Jan 11, 2023

      A:  When you say the red light is on, do you mean it is flashing every so often or that it is staying on constantly? Normally, the Green LED should flash every 30 seconds with a 0 or the current reading of carbon monoxide on the display. Please refer to the owner's manual under Operating and Alarm Characteristics and call us with the alarm in hand at 1-800-880-6788 so we can help you figure out what the alarm is doing and get this resolved for you.

      by|Jan 5, 2023

        A:  Yes and there should be number zero

        by|Feb 23, 2023
          1 found this answer helpful
          caret
          Q:What is lowest ppm it will display
          by|Dec 9, 2022
          1 Answer
          Answer This Question

          A:  Hello. This alarm will show 30 PPM to 999 PPM

          by|Dec 9, 2022
            caret
            Q:Can this be stuck to the wall without hardware? I can?t put any holes in my wall.
            by|Nov 16, 2022
            3 Answers
            Answer This Question

            A:  I didn't bother mounting them to walls, just placed them on furniture in areas I wanted covered where they are within easy reach if I need to check them or change the battery. You may be able to use tape such as duct tape but that may leave a mark or blemish on the wall.

            by|Feb 9, 2023
              1 found this answer helpful

              A:  If you want to attach it to a wall, you must use a screw. However, I have put my device on top of a tall cabinet in some cases in lieu of attaching to a wall.

              by|Dec 3, 2022
                1 found this answer helpful

                A:  Hello. No. It is not designed to be stuck with adhesives. But it can be placed just on a table or a counter without installing it on the wall at all. We strongly recommend that if you have it on a counter or a table that it not be higher than 3 feet. It is rated and designed to usually survive a fall of 3 feet or less.

                by|Nov 16, 2022
                  Showing 1-4 of 34
                  caret

                  Customer Reviews

                  4.6 out of 5
                  • 4.6 out of 641 reviews
                  • 93% recommend this product
                  Filter by:
                  Showing 1-10 of 641 reviews
                  I feel much safer now
                  I was VERY concerned that the master bedroom`s connecting closet has the water heater in it, and the 2nd bedroom shares a wall with the furnace closet. Id wished heating appliances were located further away. So im happy they sold these CO monitors in a twin pack because i was able to place one in each bedroom & not be worried anymore. Came with batteries included and was easy to understand once i read the manual, pretty loud alarm & the green blinking light is not distracting. The heating appliances used to be in the basement but im now in a single level house so i cannot stress how important a carbon monoxide detector is -every household really should have a few.
                  by
                    • Recommended
                    1 found this review helpful
                    Seriously?
                    It's June 2022 and the allegedly "brand new" alarm I just purchased was manufactured more than 3 years ago. Also, there were NO instructions or a user manual included, and I can't find one online. Considering this was made in China, I guess I shouldn't be too surprised. I wish I hadn't bought this online, because I don't think it can be returned with the plastic package cut up. I'd advise buying a First Alert instead.
                    by
                    Response from Kidde ExpertJun 3, 2022
                    Hello. This alarm is good for 10 years from date of installation and is warrantied for 10 years from the date of the receipt or invoice. Staple the receipt to the owner's manual or keep a digital copy or picture of the receipt or invoice and if there is ever a warranty issue, we would honor the warranty based on the date of receipt and have you send us a copy of the receipt for warranty fulfillment.
                      Got this CO detector on clearance and is excellent value...
                      Got this CO detector on clearance and is excellent value for the price. Is super compact and comes with mounting hardware that is concealed behind panel for easy & clean wall mounting.
                      by
                      • Verified Purchase
                      1 found this review helpful
                      A great way to protect your family from deadly Carbon Monoxide gas. Use in any homes with utiliti...
                      A great way to protect your family from deadly Carbon Monoxide gas. Use in any homes with utilities, fireplaces or appliances that could give off CO (Carbon Monoxide) gas. It would also be a good idea to have one even if you do not have any utilities or appliances that burn gas/oil or wood in your home but live in an apartment, condo or townhouse that may have an adjoining unit that may have this type of utility. I purchased these to replace an older unit in my home that is approaching the end of its lifespan. I previously only had one in my utility room, and will now add another to an upper floor near bedrooms.
                      by
                      • DIY
                      • Recommended
                      Easy to install and looks good above my thermostat and...
                      Easy to install and looks good above my thermostat and the digital display is very easy to read. It is also a great value in the two pack
                      by
                      • Verified Purchase
                      1 found this review helpful
                      Great peace of mind to have. Easy to install and looks like a thermostat. The two pack is great s...
                      Great peace of mind to have. Easy to install and looks like a thermostat. The two pack is great since my house has Two floors. Great to get batteries with the units so you don’t have to find some when you’re ready to install.
                      by
                      • DIY
                      • Verified Purchase
                      • Recommended
                      It is very difficult to give a review ... I have it under observation ... but there is definitely...
                      It is very difficult to give a review ... I have it under observation ... but there is definitely a big problem with the included batteries - they overheated, in a big way - for safety I did not install them again but it took time for them to return to normal temperature ... please take precautions, with batteries included.
                      by
                        I actually returned this NightHawk and got 3 of the round voice alarms for my bedrooms and the Co...
                        I actually returned this NightHawk and got 3 of the round voice alarms for my bedrooms and the Combination alarm & Carbon Monoxide Alarm with Intelligent Wire-Free Interconnect. I'm very happy with the Kidde alarms. They are loud! I love the easy installation and the testing to see how it will work. We tried to interconnect the alarms, but were unable to do so. That would be a nice thing to have. I feel safer now having these alarms installed in my house. Prioi to this I only had the hard-wired alarm in the hallway.
                        by
                        • Verified Purchase
                        • Recommended
                        The installation was very simple and the digital readout was very clear.
                        The installation was very simple and the digital readout was very clear.
                        by
                        • Verified Purchase
                        • Recommended
                        1 found this review helpful
                        Great value and easy to install!
                        Great value and easy to install!
                        by
                        • Verified Purchase
                        • Recommended
                        Showing 1-10 of 641 reviews

                        Compare Similar Items

                        current item

                        Power Source

                        Battery

                        Battery

                        Battery

                        Plug-In

                        Alarm/Detector Features

                        Digital display, Hush Button, Tamper Resistant

                        Digital display, Hush Button, Light Indicator, Tamper Resistant

                        10-Year Battery, Digital display, Hush Button, Tamper Resistant

                        Battery Back-Up, Digital display

                        Pack Size

                        2

                        1

                        1

                        1

                        Alert Type

                        Siren

                        Siren

                        Siren

                        Siren