0047871097203

Kidde

Model # 21009720

Internet # 203728677

Store SKU # 151533

Store SO SKU # 198092

Worry Free 10-Year Lithium Ion Battery Operated Carbon Monoxide Alarm with Digital Display

$44.97 /each
  • 10 year battery
  • Digital read out
  • Tamper resistent

Frequently Bought Together

Product Overview

Kidde 10 year Worry Free Carbon Monoxide Alarm will provide you and your family with a loud warning signal against the dangers of elevated carbon monoxide levels in your home. This alarm features a digital read-out that will provide you and your family "at a glance" real-time readings of carbon monoxide levels in your home. No more waking in the middle of the night to the dreaded midnight chirp when you install this Worry Free alarm that is powered by a ten year sealed long-life lithium battery. With this alarm monitoring your home for carbon monoxide you and your family are protected from the dangers of the silent killer, even during power outages.

  • Kidde 10 year carbon monoxide alarm is maintenance-free; never replace a battery during the alarm's operating life, in addition to the benefit of maintenance free, batteries are sealed, no need to worry about them being removed
  • Features an end-of-life signal that alerts you when it is time to replace the alarm; signal chirps every 30 - 45 seconds when alarm needs replaced
  • Money savings, no batteries to buy and replace every six months, save up to $40.00 over the life of the alarm
  • Alarm is equipped with test - reset button, tests the circuitry and horn and resets memory after alarm has sounded
  • Alarm is UL listed and is equipped with a piezoelectric horn that is rated at 85 dB at 10 ft. and electro-chemical sensor that last 40% longer than other carbon monoxide alarm

Info & Guides

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Specifications

Dimensions

Product Depth (in.) 
1.5 
Product Height (in.) 
2.75 
Product Width (in.) 
4.5 

Details

Alarm Type 
Carbon Monoxide 
Alarm/Detector Features 
10-Year Battery,Digital display,Tamper Resistant 
Battery Back-Up 
No 
Commercial / Residential 
Commercial / Residential 
Connector/Contact Type 
None 
Included 
Batteries 
Power Source 
Battery 
Returnable 
90-Day 
Voltage (volts) 

Warranty / Certifications

Certifications and Listings 
1-UL Listed 

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Customer Questions & Answers

13 Questions35 Answers

Customer Questions & Answers

Worry Free 10-Year Lithium Ion Battery Operated Carbon Monoxide Alarm with Digital Display
Worry Free 10-Year Lithium Ion Battery Operated Carbon Monoxide Alarm with Digital Display

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4 answers

Is this made by Honeywell?

This question is from Worry Free 10-Year Lithium Ion Battery Operated Carbon Monoxide Alarm with Digital Display
Asked by
Louisville, ky
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June 3, 2016
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Answers (4)

June 6, 2016
Answer: 
Hello Motherinlaw. No. This unit is made by Kidde Safety. Honeywell is a different company that makes security alarm panels. We are Kidde Product Support at 1-800-880-6788. Thank you for your interest
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Asked by
SC
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June 5, 2016
Answer: 
It is made by Kidde.
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Asked by
Middletown NJ
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June 4, 2016
Answer: 
Hi.
This unit is made in China. I don't know if Honeywell owns the factory which produces this item
I wish I could tell you more. Maybe a call to Honeywell?
.
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June 4, 2016
Answer: 
No, this is not made by Honeywell.
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4 answers

Will it work at temps below 68Deg?

This question is from Worry Free 10-Year Lithium Ion Battery Operated Carbon Monoxide Alarm with Digital Display
Asked by
San Jose,CA
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May 25, 2016
Some review comments indicted otherwise.
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Asked by
Middletown NJ
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May 27, 2016
Answer: 
Hi. I'm not sure of the operating temp range, but I believe the specs are published on the manufacturer's website. I would think this unit would function at temps less than 68d. You might try calling the manufacturer as an alternative.
Sorry I couldn't be more definitive.
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May 26, 2016
Answer: 
Yes, this will work at temps below 68 degrees.
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Asked by
Fairfax, Virginia
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May 26, 2016
Answer: 
Yes, operating temp. is 40-100F.
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May 26, 2016
Answer: 
Hello Piperman. Yes. This alarm is rated for use between 40 degrees and 100 degrees. The unit has a 10 year warranty and if there is an issue with the alarm when it gets below 68 degrees, give us a call at Kidde Product Support at 1-800-880-6788 with the alarm in hand and we will help your with the alarm and if necessary, replace it if it is still under warranty.
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4 answers

Do you need to mount this unit near the ceiling? If so why the display?

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October 29, 2015
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Asked by
Middletown NJ
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April 29, 2016
Answer: 
No, but the mounting instructions are clear as to the where to mount this unit. Approximate eye level is good.
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October 30, 2015
Answer: 
Hello Dusty, If mounting on the wall, we recommend mounting at eye level. Carbon monoxide alarms do not have to be near the ceiling. Thank you.
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Asked by
SC
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October 30, 2015
Answer: 
No. CO has about the same density as air. It should be mounted near the natural gas appliance that you are using.
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Asked by
Barrington NH
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October 30, 2015
Answer: 
HI my nephew put it at the stop of the cellar stairs so it was kinda low. i hope this helps! i think its supposed to be a foot from the ground
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4 answers

What is the sensitivity of the monitor in PPM? How low PPM does it report accurately?

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California
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October 31, 2014
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Asked by
SC
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October 30, 2015
Answer: 
I have read around 5 ppm.
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Asked by
Annapolis, MD
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December 4, 2014
Answer: 
The instructions claim that it will display levels between 11-999 ppm. It will not set off the alarm at levels below 30 ppm. In an actual event in my apartment building of a gas water heater flue leak, my unit registered 13 ppm and a neighbor's registered 19 ppm. Neither alarms went off, but the fact that the unit detected something, even if it was not yet at a dangerous level, was very reassuring to me. Read More
The instructions claim that it will display levels between 11-999 ppm. It will not set off the alarm at levels below 30 ppm. In an actual event in my apartment building of a gas water heater flue leak, my unit registered 13 ppm and a neighbor's registered 19 ppm. Neither alarms went off, but the fact that the unit detected something, even if it was not yet at a dangerous level, was very reassuring to me. I hope this helps! Read Less
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November 3, 2014
Answer: 
Hello. In response to your question, our alarms are tested and rated for 70 parts per million (PPM) or above. The lowest amount that will show up on our alarm is 30 parts per million. Our alarms are accurate +/- 30%, so if it shows 30 ppm, it could actually be as low as 21 or as high as 39. The lowest amount that will set off our alarms is 36 PPM after 50 hours of exposure. At 40 PPM, it will go after Read More
Hello. In response to your question, our alarms are tested and rated for 70 parts per million (PPM) or above. The lowest amount that will show up on our alarm is 30 parts per million. Our alarms are accurate +/- 30%, so if it shows 30 ppm, it could actually be as low as 21 or as high as 39. The lowest amount that will set off our alarms is 36 PPM after 50 hours of exposure. At 40 PPM, it will go after about 10 hours. At 70 PPM, it will go off after 1 to 4 hours. At 150 PPM, it will go off after 10 to 50 minutes. At 400 PPM to 999PM, it will go off after 4 to 10 minutes. If you have further questions, you can call us at 1-800-880-6788. Thank you for your interest. Read Less
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Asked by
Beavercreek, Ohio
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November 3, 2014
Answer: 
The unit's peak level memory will display levels between 11 and 999 PPM. However, PPM levels below 30 will not trigger the alarm. Concentrations of CO between 1 and 30 PPM can often occur in normal, everyday conditions; per the provided instructions.
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Customer Reviews

Rated 4.6 out of 5 by 52 reviewers.
Rated 5.0 out of 5.0 by Easy directions and installation I purchased the product primarily because of the ten-year lithium ion battery and the digital display. Both of which makes the detector truly worry free! July 19, 2016
Rated 5.0 out of 5.0 by Must have for both individual and family security Product is the best that I have encountered for carbon monoxide protection. May 10, 2016
Rated 5.0 out of 5.0 by LITHIUM ION BATTERY OPERATED CARBON MONOXIDE ALARM Easy to mount and activation was a breeze. They don't take up much wall space and the blinking green indicator lets me know the sensor is on duty 24/7. April 29, 2016
Rated 5.0 out of 5.0 by Small and easy to install - 10 year battery Small and easy to install. I liked that it's battery operated and that there is no cord. Where I have mounted it, a cord would have been a hassle. Although the built-in battery cannot be replaced, it is supposed to last for ten years (which is great). A very good purchase, I think. March 29, 2016
Rated 5.0 out of 5.0 by Feeling safer Very easy to install and set up. Good for 10 years. I like it. February 23, 2016
Rated 5.0 out of 5.0 by So far, so good... We woke early one morning to have our existing CO2 alarm going off, only to discover that one had reached its end of life cycle. We replaced it with this model. Material is sturdy and the LED code is a great plus! The real test will be if the internal battery lasts for 10 years! January 19, 2016
Rated 5.0 out of 5.0 by SAFE AT LAST We have been needing a CO detector for years, but like many other things, it went on the back burner. What I noticed about this unit is it had everything important for safety. I like the fact that it had a 10 yr lithium battery. May 19, 2014
Rated 4.0 out of 5.0 by Was easy to install - appears to work fine. The Co monitor was easy to install and I like the idea of not having to change the battery about once a year as we did on the previous one. However, since we do not have any CO problem, I can't swear to the fact that is it woking properly. January 20, 2016
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