CO2 Monitor with Temperature Humidity Sensor, Air Quality Tester, CO2 Detector Car Accessories Please allow 1-3cm error due

Please allow 1-3cm error due to manual measurement

minute and second

Various Occasions: Children/family/friends/relatives don't miss it

Material: PU

Its precise guide targets the inside of your eyelids

CO2 Monitor with Temperature Humidity Sensor, Air Quality Tester, CO2 Detector Car Accessories Please allow 1-3cm error dueCO2 Monitor with Temperature Humidity Sensor, Air Quality Tester, CO2 Detector Features: Large LCD screen, different font colors display different air quality, green numbers, yellow numbers, orange numbers, red numbers, four colors above 2000ppm flash at the same time. The product has a compact structure and is easy to transport. The ventilation holes on the back not only accelerate the convection between the air and the machine, so as to obtain