Review on Detector Temperature Humidity Rechargable Car Mounted by Walter Day

Bought another detector which I keep in the kitchen but never see one off the display. It has an audible alarm, but it only activates during the test and the readings are always the same. I don't know if it's a permit or something, but it worries me. I don't even know if it works. It was about 50 percent more expensive, but the display and features glowed day and night. It shows the current temperature and relative humidity in color. In addition, the CO content of the air is displayed in large, bright and easy-to-read digits. There is a discrepancy on the product page as the instructions state a range of up to 4000ppm and the product page states 5000. I think it doesn't matter, both will be in the warning range. In contrast to my old version, the current level is displayed very dynamically here. When I turned it on it went solid green, and at 600 PPM, a bit later, maybe with the fan on, it jumped to 700 and the amber light came on normally. It stayed that way until I fell asleep and in the morning it was back to 600 and turning green again. The device was nicely packed in a gift box, the manual was small and difficult to read, it could use a little improvement. Comes with a stick on a stand and a USB charging cable. There is a small extendable stand on the back of the device so it can be placed on a table or shelf. The PPM display's changing activity shows it's working, and other features are worth the extra money. highlighted.