Jemay 2-Pack Carbon Monoxide Detector with 7-Year Battery Life - Replaceable Batteries Included

By: ‎Jemay

Jemay 2 Pack CO Detector has been recommended by 9Reviews, based on an analysis of over 70,000 reviews on January 5, 2023 at 3:02 p.m. This device boasts a 7-year life, making it an ideal choice for your home or office. With advanced features such as an LCD screen, voice alarm, and self-test, this CO detector is sure to keep you and your family safe from the dangers of carbon monoxide.
82
B2B Rating
78 reviews

Review rating details

Value for money
77
Safety
75
Overall performance
78
Noise level
79
Efficiency
78
Easy to install
83
Design
79
Customer support
81
Build quality
83
Battery life
80

Details of Jemay 2-Pack Carbon Monoxide Detector with 7-Year Battery Life - Replaceable Batteries Included

  • Alarm: ‎Visual
  • Battery Cell Type: ‎Alkaline
  • Item model number: ‎GS811-A
  • Power Source: ‎Battery Powered
  • Date First Available: October 19, 2022
  • Part Number: ‎GS811-A
  • Style: ‎Modern
  • Operating Humidity: ‎95 percent
  • Batteries Required?: ‎Yes
  • Size: ‎1 PACK
  • Upper Temperature Rating: ‎50 Degrees Celsius
  • Sensor Type: ‎Electrochemical
  • Customer Reviews: 4.6/5 stars of 471 ratings
  • Manufacturer: ‎SITERWELL ELECTRONICS CO.,LIMITED
  • Item Weight: ‎6.4 ounces
  • Brand: ‎Jemay
  • Package Dimensions: ‎5.2 x 4.02 x 2.24 inches
  • Batteries: ‎3 AA batteries required.
  • Batteries Included?: ‎Yes
  • ASIN: B0BJQF43TY
  • Item Package Quantity: ‎1
  • Best Sellers Rank: #99,586 in Tools & Home Improvement #95 in Carbon Monoxide Detectors

Comments

dominic l.: Works exactly as described. Seems to be quite accurate.

United States on Jul 27, 2023

rachelle1234: We are offgrid and have to use a generator on bad weather winter days. We had to get a new generator and placed in front of the house initially. I wasn't paying enough attention to where the exhaust was pointing. I tried to angle it away from the house as much as possible, but the AC (30A) cord was stretched to it's max.
Was home alone not feeling great and the alarm placed up high above the propane powered furnace went off LOUDLY. I checked it out and it was around 90 ppm, so I immediately turned off generator and vented the whole house.
Ends up the generator exhaust was making it's way into the exterior dryer vent. I felt dumb and grateful for this device. I like the measurement to help me know how long to vent fresh air. Some devices don't have a numerical display - I found it helpful.
We had an experience where we left our guinea pig with another family while we traveled for the summer a few years ago. They guinea pig passed away of Carbon Monoxide poisoning but saved the family's grandmother as an indicator. So we take the risks seriously.

United States on Jan 13, 2023

rocky: Seems simple enough and I like that it’s portable and I can bring it on my travels. The battery sucks, so I take a star off for that reason.

United States on Dec 24, 2022

Mr. Carver: Well, can't really say how well they work at measuring carbon monoxide. Apparently my bedroom and my basement have no carbon monoxide at all. Let's hope they're working well.

Very easy to set up. Two minutes and they were up and running. I do have two little gripes. One, the display toggles between temperature and carbon monoxide concentration. I'm not really interested in the temperature. Just show me the carbon monoxide. And why do we have to have the little green light that flashes every 17 seconds? Just to show that the batteries are still working? Well, that's fine, but in the middle of the night when I'm trying to sleep that little light is blinking. Finally had to put a piece of tape over it. Why not just a little buzz or something when the batteries start to die, especially if they really last as long as advertised.

United States on Dec 19, 2022

✨FancyRat✨: The CO alarm doesn’t have anything to set up. Two alkaline batteries were already placed inside and it says on the top back to replace it 7 years after the production date. There is a manufacturing and replacement date clearly visible on the label. I see just one button that serves to silence an alarm or initiate a test. The one line LCD display alternates between the current value of CO in ppm and the current temperature in Celsius. I didn't find a way to convert the temperature unit to Fahrenheit but I don’t care much as I bought it as CO alarm anyway. I can set it on a flat surface and it will stand or I can hang it on the wall as it has two mounting holes. I performed a few tests during the two months I’ve owned it. However, to put the alarm to a real test, I placed a smoking piece of cardboard inside a clear container along with the CO alarm and covered the container. At first, the container began to fill with thick smoke, then the alarm sounded. It’s much louder than when I press on the test button and I could see a reading of 999 ppm. The display didn’t alternate, showing only the CO value. I removed the alarm from the container and it took a full seven minutes...

United States on Nov 07, 2022



Jemay 2-Pack Carbon Monoxide Detector with 7-Year Battery Life - Replaceable Batteries Included Kidde Carbon Monoxide Detector with Digital Display and Battery-Powered Operation Kidde Battery-Powered Carbon Monoxide Detector Alarm - Protect Your Home from Dangerous Gas
Jemay 2-Pack Carbon Monoxide Detector with 7-Year Battery Life - Replaceable Batteries Included Kidde Carbon Monoxide Detector with Digital Display and Battery-Powered Operation Kidde Battery-Powered Carbon Monoxide Detector Alarm - Protect Your Home from Dangerous Gas
B2B Rating
82
97
96
Sale off $2 OFF $14 OFF
Total Reviews 78 reviews 3 reviews 1 reviews
Alarm ‎Visual ‎Audible ‎Fire safety, battery powered, tamper-resistant
Battery Cell Type ‎Alkaline ‎Alkaline ‎Alkaline
Item model number ‎GS811-A ‎KN-COPP-B-LPM ‎KN-COSM-BA
Power Source ‎Battery Powered ‎Battery Powered ‎Battery Powered
Date First Available October 19, 2022 May 11, 2011 August 13, 2010
Part Number ‎GS811-A ‎21008873 ‎KN-COB-LP2 9CO5-LP2
Style ‎Modern ‎Detector Alarm
Operating Humidity ‎95 percent ‎5% to 95% relative humidity, non-condensing ‎5% to 95% relative humidity, non-condensing
Batteries Required? ‎Yes ‎Yes ‎Yes
Size ‎1 PACK ‎KN-COPP-B-LPM ‎1 Pack
Upper Temperature Rating ‎50 Degrees Celsius ‎37.8 Degrees Celsius ‎100 Degrees Fahrenheit
Sensor Type ‎Electrochemical ‎Electrochemical ‎Electrochemical
Customer Reviews 4.6/5 stars of 471 ratings 4.7/5 stars of 17,079 ratings 4.7/5 stars of 28,785 ratings
Manufacturer ‎SITERWELL ELECTRONICS CO.,LIMITED ‎Kidde Safety ‎Kidde
Item Weight ‎6.4 ounces ‎0.16 ounces ‎8 ounces
Brand ‎Jemay ‎Kidde ‎Kidde
Package Dimensions ‎5.2 x 4.02 x 2.24 inches
Batteries ‎Yes ‎3 AA batteries required. ‎2 AA batteries required.
Batteries Included? ‎Yes ‎Yes ‎Yes
ASIN B0BJQF43TY B004Y6V5CI B004Y6V6K4
Item Package Quantity ‎1 ‎1 ‎1
Best Sellers Rank #99,586 in Tools & Home Improvement #95 in Carbon Monoxide Detectors #414 in Tools & Home Improvement #5 in Carbon Monoxide Detectors #107 in Tools & Home Improvement #2 in Carbon Monoxide Detectors
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