BLE Temperature and Humidity Sensor

The WTH300 is used to monitor temperature and humidity. It can be utilized in cold chain logistics, asset monitoring and other environmental management applications. It works perfectly with Queclink BLE trackers to collect environmental data.


Dimensions 70.6×38×17.8mm
Weight 1.52oz (43g)
Operating Voltage 2.7V~3.3V DC
Operating Temperature -40℃~+70℃
Waterproof IP66
Transmission Distance Max 100m (open area)
Carrier Frequency 2.4 GHz, supports BLE 4.2 protocol
Temperature Measure Range: -40℃~+70℃
Accuracy: 10℃~50℃, error: ±0.5℃
Accuracy: ≤10℃ or ≥50℃, error: ±2℃
Humidity Measure Range: 0%RH~100%RH
Accuracy: 0%RH~90%RH, error: ±2.5%RH
Accuracy: ≥90%RH, error: ±3.5%RH
Sampling Period Once per second
LED Indicator Indicates pairing, on/off status or low battery
Transmission Mode Periodic data broadcast (100ms to 10s)
Battery Life Two FR03 Li-Fe batteries , 1250mAH, over 3 years lifetime
Low Power Alarm Alarm when internal battery is low


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