It is an advanced carbon dioxide detection instrument built in  high-quality Infrared ( NDIR ) sensor to allow real-time monitoring of carbon dioxide (CO2), temperature and humidity on its digital LCD display. This instrument not only accurately measures the concentration of carbon dioxide in the air, but also showcases personal style through graffiti(Tuya). After connecting your phone,you can view real-time data anytime and anywhere, making you familiar with the air quality around you. 

-Material:ABS
-Product Size：162*94*87MM
-Common Screen display
-CO2 Technology :  infrared ( NDIR) 
-Temperature unit Celcius

-CO2 Detection range:  400-5000 ppm

-CO2 Alarm  value : 1000ppm ,support hand Setting  CO2 alarm threshold from 800ppm-2000ppm. 

-CO2 Alarm  on /off function(if users do not like alarm ,people can turn it off )
-Power supply：rechargeable  Li-battery 1600mah includding USB Chargeing cable

Advantage : 
-WiFi  TUYA APP,datas transfer to mobile phones  to check CO2 values Wireless
-Integrated detection with CO2/Temperature/Humidity
-Auto calibration 
-Very long working time up to 12 hours 
-Exceeding Alarming with auto detection and auto measuring
-Alarm sound can be turned  off / on  by hand operation 
- Smile face , very realistic.

Package details： 
Product N.W.：225g 
Product G.W.：300g 
Package Dimension：112*68*66 mm 
CTN Dimension：55.0*28.0*42.0cm
CTN Weight: 10kg 
40sets/CTN