Technical specifications

Temperature	-20℃ to 60℃( -4℉ to 140℉)
Humidity	10% to 90%, No condensation
Ambient light	0–83,000 lux
Accuracy	Temperature ±0.2 ℃, humidity ±2%, ambient light ±2%
Memory	300,000 sensor records

Network connection

WiFi	2.4GHz or 2.4/5GHz, channels 1-13 (5GHz WiFi NOT supported)

Physical specifications

Materials	Flame resistant ABS & PC
Dimensions	65 x 65 x 16.5mm
Weight	31.8g ± 3g
Colour	White
Ports	1 x Mini USB，1 x Micro USB
Power Supply	2 x AA batteries /Micro USB (5V/2A)

External probes supported

1 x DS18B20 temperature probe

One single pack includes

1 x WS1 device; 1 x manual book; 1 x USB cable; 2 x pieces of double side adhesive tape