Walmeck 3 in 1 Carbon Dioxide Detector Air Quality Humidity Air Analyzer for CO2 Digital CO2 Meter for Home Office

Features: 
Color screen display: color screen display makes it easier for you to read and identify in darkness. 
Wide application: portable size enables you to take it anywhere you go. It can be used at home, office, shopping mall, hotels and etc. 
3 in 1: It can detect real-time CO2 concentration, humidity, and temperature. CO2 detection : 400-5000PPM. Temperature detection : 0-50℃. Humidity detection : 0-99%RH.
CO2 detector: color ring will change according to current CO2 concentration. 
USB charging: It can be charged through charging port of any mobile device. battery icon flashes in charging state and it stops when it's full.  
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Specifications:
Name: CO2 meter
Color: white/black(optional) 
Material: ABS
3in1 detector: CO2 concentration/temperature/humidity
CO2 detection : 400-5000ppm
CO2 accuracy: ±1ppm
Humidity accuracy: ±2%RH
Size: 90*70*40mm
Battery: 3.7V 1200mAh
Charging time: 2-3h
Work time: 4-6h

Package information:
Size: 141*98*48mm
Weight: 175g

Package list:
1*CO2 meter
1*charging cable
1*instruction