CEKKIENA [3-in-1] Carbon Monoxide Detector Portable Mini Air Quality Monitor with Lanyard Methane Gas Leak Smoke Alarm CO Temperature Humidity Sensor Built-in 1000mAh Battery, Indoor/Outdoor (Grey)

Price: $39.99 - $33.99
(as of Sep 23,2023 20:57:36 UTC – Details)

Electrochemistry working method. More accurate detection of carbon monoxide. There is no delay, real-time monitoring, and data is refreshed every 2 seconds shows on the color HD 1.9’’ screen, so that you can always know the air quality of the environment.
Larger detection range: CO range: 0 to 1000PPM; Humidity range: 0% to 95%RH; Temperature range: -4 to 140 ℉. The cycle alarm works when the CO is over 50ppm.
Built-in 1000 mAh rechargable battery & new power-save mode. To extend the CO detector’s working time, the backlight will turn off when there is no operation or alarm signal, but the detector still continue detecting CO per 2s. The audible alarm will sound “di” every minute when battery is low power. New power-save mode helps to improve the ful charged detector working time to 60 hours.
Portable Designed. Perfect for outdoor and indoor activities, camping tents, boats, aircraft, stove heating, vehicles, and other confined spaces. It is so good helper for you.