Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display for House Kitchen Restaurant Hotel Office
Key features
- •【New Optimized Imported High-precision Sensors】Using 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 Standard】50ppm - Alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes.
- •【Package Includes】：1×carbon monoxide detector,1×manual, 2×screws
- •Safety Certification: UL2034
- •Warranty & Return Service Guarantee: 2 years warranty; If you have any technical problems, please contact us and we will reply you as soon as possible.
Carbon Monoxide Detectors - Hembisen CO Alarm Detector Monitor Battery Operated with Digital Display for House Kitchen Restaurant Hotel Office
List Price: $29.08$26.17DEALYou Save: $2.91 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 25, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.4
out of 5
Based on 10 reviews
5★
50%
4★
50%
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Works, instructions and marketing unclear
G. Habermann✓ Verified Purchase•July 28, 2023
I got this and opened it up. It comes with a couple of different mounting options which is nice (wall anchors & some 3M sticky tape). Says it needs 2 AA batteries.. no problem. The instructions are in broken English and are far from complete. That, along with the marketing images and copy on the Amazon page led me to be pretty confused. Let me explain:
When the batteries were inserted it beeped and while the screen didn't light up blue like what is shown in the pictures, it did start counting backwards down from 100. Once it got to around 30 or so, the screen shut off. Instructions talked about buttons that didn't exist along with endless talk about where NOT to put this device and it told me that it should blink green once every 15 seconds. Again.. none of this is correct.
As it turns out the light should blink around every 30 seconds (it's faint and not obvious). The screen does not illuminate nor give you the PPM shown in the marketing photos. It sits, quietly in the background and waits for CO to appear. Once that happens, this thing turns into a siren.. lighting up the screen blue, telling you the PPM, and flashing and wailing at a volume that could wake the newly dead.
In short, this is very much just like a passive smoke alarm. Unfortunately it's marketing makes it seem that it's different and I was thinking mine wasn't working at all. If you want to test this, just go outside and set this near the tailpipe of your car. When you bring it back in the house, mount it up near the ceiling but away from drafts or fans.
When the batteries were inserted it beeped and while the screen didn't light up blue like what is shown in the pictures, it did start counting backwards down from 100. Once it got to around 30 or so, the screen shut off. Instructions talked about buttons that didn't exist along with endless talk about where NOT to put this device and it told me that it should blink green once every 15 seconds. Again.. none of this is correct.
As it turns out the light should blink around every 30 seconds (it's faint and not obvious). The screen does not illuminate nor give you the PPM shown in the marketing photos. It sits, quietly in the background and waits for CO to appear. Once that happens, this thing turns into a siren.. lighting up the screen blue, telling you the PPM, and flashing and wailing at a volume that could wake the newly dead.
In short, this is very much just like a passive smoke alarm. Unfortunately it's marketing makes it seem that it's different and I was thinking mine wasn't working at all. If you want to test this, just go outside and set this near the tailpipe of your car. When you bring it back in the house, mount it up near the ceiling but away from drafts or fans.
Easy to setup
Candy Ann✓ Verified Purchase•July 27, 2023
Installing and setup was pretty easy. It was well worth the price as well!
Saved our life!
Sarah✓ Verified Purchase•July 25, 2023
This detector picked up a CO leak in our house and literally saved my whole families life. If you don't have one, please get one!
In our house, we got a leak in the water heater so the air started pulling CO from the water heater exhaust system and distributing it throughout the house and numbers were highest in the bedrooms! Get a detector now!
In our house, we got a leak in the water heater so the air started pulling CO from the water heater exhaust system and distributing it throughout the house and numbers were highest in the bedrooms! Get a detector now!
Great product easy install
Frank Chapman✓ Verified Purchase•July 24, 2023
Easy install great value
PEACE of mind! Priceless!
jane Burgess✓ Verified Purchase•July 23, 2023
So easy to install and the directions where fantastic! I learned I am supposed to put the detectors up high on the ceiling. Who knew? Cute thank you card included which worked because I am now going to check out their store! Excellent buy!
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