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Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display for House Kitchen Restaurant Hotel Office

  • Based on 861 reviews
Condition: New
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$19.99 Why this price?
4th of July Sale · 13% off was $22.99

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 8
Order within 15 hours and 54 minutes
Available payment plans shown during checkout

Item Package Quantity: 1


Features

  • New Optimized Imported High-precision SensorsUsing electrochemical sensors, with more reliability, stability, responsiveness, to avoid the possibility of false readings and false alarms.
  • Microprocessor intelligent identification When the carbon monoxide gas leak reaches a certain level, the carbon monoxide detector can quickly identify the gas and issue an 85-decibel alarm to avoid dangerous accidents and ensure the safety of people and property.
  • Alarm Standard50ppm - Alarm within 60 to 90 minutes; 100ppm - Alarm within Ten to Forty minutes; 200ppm - Alarm within 1 minutes.
  • Power Saving Design: When there is no carbon monoxide gas in the surrounding environment, the device display will automatically turn off the screen and turn on the power saving mode.

Brand: Hembisen


Style: Safety


Power Source: Battery Powered


Color: White


Alarm: Audible


Sensor Type: Electrochemical


Manufacturer: Shenzhen Wei 'an Environmental Protection Electronic Technology Co. LTD


UPC:


Brand: Hembisen


Style: Safety


Power Source: Battery Powered


Color: White


Alarm: Audible


Sensor Type: Electrochemical


Manufacturer: Shenzhen Wei 'an Environmental Protection Electronic Technology Co. LTD


UPC: 632368770570


Package Dimensions: 4.49 x 4.33 x 1.81 inches


Item Weight: 4.6 ounces


Item model number: H-212


Date First Available: February 11, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Good value, look nice
Item Package Quantity: 3
I like the price on these, they are fairly small so does the job without taking up a lot of space. Simple to operate. I like the battery vs plug in as I don’t have lots of unused outlets. One of my units was defective but I contacted seller and they sent replacement. I appreciated that they answered my emails promptly so give them full marks. ... show more
Reviewed in the United States on May 30, 2024 by Oregon

  • Seems to work
Item Package Quantity: 1
Easy to install. Good quality. Great value. Battery operated and so far great performance. Seems like it is doing its job.
Reviewed in the United States on May 23, 2024 by Bob Smith

  • Easy to install
Item Package Quantity: 3
These have an easy read display and are super easy to install only using a two sided padded sticker. Only negative is one did stay on the wall and I need a new two sided sticky pad.
Reviewed in the United States on March 30, 2024 by Bryan Kahanca

  • Safety first
Item Package Quantity: 3
Thought we had these in our house and we did not, we own a variety of animals and want everyone to be safe. We have one on each floor with the fire detectors just a s aback up battery life is great, the size is perfect and the blend in nicely
Reviewed in the United States on July 13, 2024 by Amazon Customer

  • Good product
Item Package Quantity: 3
I hope this is a good product. Really no way to tell of it actually works or not until there is a detection of carbon monoxide. I hope there isn't. Very easy to install with good instructions. You are to mount either on a ceiling or a wall within 11 inches of the ceiling. Doesn't come with batteries, which isn't a big deal. Everyone should have extra batteries laying around. ... show more
Reviewed in the United States on December 22, 2023 by Tom

  • Product as discribed!
Item Package Quantity: 3
Was very easy and a great value, tested after installing them worked perfectly.
Reviewed in the United States on January 8, 2024 by William Bruus

  • Works?
Item Package Quantity: 3
Appears to be working. But I haven't gotten an alarm in any area of my house. I took 1 star off because the numeric readout on the front doesn't seem to do anything. And another because this doesn't run on the voltage from top name rechargeable batteries. Must use non-rechargeable alkaline batteries (which I hate buying. ... show more
Reviewed in the United States on April 23, 2024 by L Conn

  • Works as expected
Item Package Quantity: 3
Placed one on each floor as instructed. They seem to to the job!
Reviewed in the United States on June 7, 2024 by Loves to read

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