Kidde Battery Operated Carbon Monoxide Alarm with Digital Display-DISCONTINUED-KN-COPP-B-LP at The Home Depot
Free shipping


Model # KN-COPP-B-LP

Internet # 100311681

Store SKU # 371777

Battery Operated Carbon Monoxide Alarm with Digital Display-DISCONTINUED

Kidde Battery Operated Carbon Monoxide Alarm with Digital Display-DISCONTINUED

This item has been discontinued.
The Home Depot no longer carries this specific product.

$29.97 / each
Item cannot be shipped to the following state(s): GU,PR,VI


In Stock



Model # KN-COPP-B-LP

Internet # 100311681

Store SKU # 371777

Store SO SKU # 198092

The Kidde Nighthawk Battery-Operated Digital Carbon Monoxide Alarm offers protection to you, your family and your home against the dangers of odorless carbon monoxide. The alarm's digital display provides an advanced level of protection by continuously displaying carbon monoxide levels and with a simple push of the test/reset button you can check that the unit is functioning properly. After 7 years of protective service, the alarm alerts you that it is time for replacement.

  • 4.5 VDC, digital carbon monoxide alarm
  • Emits early warning alarm upon the detection of carbon monoxide
  • Features end-of-life warning to alert time for replacement after 7 years of use
  • Push-button operation resets and tests alarm's functionality
  • Requires AA batteries
  • Battery operation allows for protection during power outages
  • Can be installed on a wall or tabletop
  • Sleek, discreet low-profile design
  • Backlit display feature allows for reading in the dark
  • Digital display continuously displays carbon monoxide levels

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.


Alarm Type  Carbon Monoxide  Alarm/Detector Features  Digital display 
Assembled Depth (in.)  1.4 in  Assembled Height (in.)  5.5 in 
Assembled Width (in.)  5.5 in  Battery Back-Up  No 
Certifications and Listings  1-UL Listed  Commercial / Residential  Commercial / Residential 
Connector/Contact Type  None  Electrical Product Type  Carbon Monoxide Detector 
Included  Batteries  Returnable  90-Day 
Voltage (volts)  4.5 


Rated 4.8 out of 5 by 14 reviewers.
Rated 4 out of 5 by Good CO2 Alarm I ordered two of these CO2 alarms and Home Depot shipped me the wrong items. Luckily, I was able to just go into my local HD and exchange them for the correct ones. So far, they seem like good alarms--I haven't had any situations. Based on all of the Home Depot and Amazon reviews, I decided to go with the Kidde Nighthawk. I had wanted to get plug-in type, but they didn't rate as well. With this model, you don't have to worry about if there is an outlet to plug-in the device; you either mount it to a wall or sit on a surface. I also like the digital display. I plan on replacing my smoke detectors with Kidde ones. November 8, 2011
Rated 5 out of 5 by good to have in your home. great value. lcd display a must bought to replace 15 year old nighthawk co monitor. sensors are supposed to last only so long but when i ran the new next to the old they read the same. if this one lasts as long as the old, it is an exceptional value. love the portability of being battery operated. peak level feature is nice. you can check to see if any low level readings have taken place in your absence. also if you keep an eye on it it could signal a problem long before it is a health issue. if you have any gas/propane/oil or kerosene burning appliances this is a must. especially at the low cost of the unit January 19, 2012
Rated 5 out of 5 by CO alarm with benefits We now have one of these alarms on every level. The first one we purchased actually alarmed in the middle of the night and we had to have the Fire Department come to the house and check each level. The maximum level feature told them the actual reading and fortunately it was just detectable . We have had no further alarms, but use one on each level in our house and check them regularly with the test feature and low battery light. June 22, 2009
Rated 5 out of 5 by NIce product Fortunately, my alarm has never detected any elevated levels of carbon monoxide. But, I am still very happy with it. The digital display is a useful and fun feature. I am also glad that the alarm takes regular alkaline AA batteries instead of the more costly 9-volt batteries. The alarm also has an end-of-life indicator, which will tell me to replace it after 7 years. I would recommend this product over the detectors without the digital display, but only because the digital display is a cool feature. July 6, 2011
Rated 5 out of 5 by Great Product We bought this after having problems with your traditional monitor at home. We acually had a carbon monoxide leak and neither of our our old monitors went off.. I love this one because it can be placed anywhere in home, taken with you on trips, and gives you an actual numeric display of amount of carbon monoxide in the air. April 3, 2012
2 >>


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

Orders for this item may be expedited for an additional fee.

Other Delivery Options:

Express and Expedited shipping options are also available. Estimated arrival times are available in checkout.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.