Pocket CO KWJ 72-9021 Carbon Monoxide Detector

A new law in WA requires these monitors in residences, and it's a real wild ride finding one that isn't flawed in some way, which would result in false alarms in the middle of the night; both scary and annoying?Read Amazon reviews on the many products of this type offered here, and then saw Cary's review for this item, and fortunately made the decision to buy the last one currently available on Amazon.(Before writing this review, however, I researched enough to learn that these are still available online from various companies, so feel this information is worth sharing.)The best aspect of this item is that it can be turned OFF when not in use. Since I intend to 'test' my home once a week, during the daytime while awake, being able to switch off is important to me. If you're wondering why I wouldn't leave it on all the time, simply because I live in an all-electric residence, without any fuels being burned; technically, this fact should exempt need for a carbon monoxide alarm? Not where the 'law' is ordained, though . . .no 'decent' comment to add about that ~~!!The unit is small, easy to carry to hotels, friend's homes as a guest, and on public transport, also . . . might as well get full value from it? !!Easy to read, excellent instructions for use, and dead simple operation.Reasonable price.Highly recommend ~~!!

So disappointed. I have had this product for a year and four months and all of the sudden it said Calibrate on the screen and it won't work. We called the company and they said that they would need to re-calibrate it and we could send it in for $90 and they would fix it but they won't give you a warranty on the fix. So it could stop working again at any point and I would have to pay another $90! This is a very expensive product and for it to stop working in a little over a year is ridiculous.

I have to admit, I didn't expect to receive such a great little carbon monoxide monitoring device in such a small package. This small monitor fits easily in the palm of your hand, clips to your clothing or attaches to your car's dash. The sensitivity is incredible. I didn't realize that I was getting up to 25 ppm of CO while sitting in traffic waiting for a light to change! I use this device to measure CO levels in my home around various combustion appliances and to monitor the car exhaust the seeps into my home through the attached garage. I had the monitor on in one of the big box stores and had the alarm go off while I was inside. Carbon monoxide deaths have increased in recent years because of the tightness of newly constructed homes. This device is a great personal protection tool and I highly recommend it.

Detects amounts down to 1 part-per-whatever, so very precise. It has worked perfectly. No shut off button, and battery cage requires small screwdriver. The battery lasted about a year. Waiting to see how things go with a new battery.

I have 2 of these units in my planes. They drain batteries very fast, and they go out of calibration. Don't bother buying ...

This is a fantastic portable tool if you want to see the amount of CO in environments you are in. Check your car interiors. I was able to verify that it worked by pointing it at the car exhaust.

Great for traveling, very small. Easy to operate and does what it says: shows you low levels of CO.

I received the product quickly. The product functions as stated. I also received a call from the complany prior to receiving the product to touch base with me on providing support, answering any questions I have, etc. Very curtious and professional company personnel and a good product. No complaints.