UbiBot WS1Pro_TechnicalSpecifications

Temperature -20℃ to 60℃( -4℉ to 140℉)
Humidity 0% to 100%
Light 0-83k lux
Accuracy Temperature ±0.3 ℃, humidity ±3%, ambient light ±2%
Memory >300,000 sensor records
WiFi Specifications 2.4GHz, channels 1-13
Mobile Networks 

Supports GPRS/3G/4G (micro SIM). 
SIM card is not provided.