Wireless temperature and humidity sensor for indoor and outdoor monitoring. Displays temperature, humidity data, and barometric pressure tendency. Outdoor high/low temperature and frost alert functionality. Wireless outdoor sensor with wall hanging and stent modes. 433.92MHz RF transmitting frequency with a 60 meters transmission range in an open area. The sensor needs to be used with the weather station. The weather station supports up to three sensors. Specifications: Screen Type: Positives LCD Temperature Measuring: Indoor measurement ranges: -10℃~+50℃ (14℉~122℉); Outdoor measurement ranges: -20℃~+60℃ (-4℉~140℉). High accuracy: 0.1℃ Humidity Measuring: Indoor & outdoor measurable range: 20%RH ~ 95%RH. High accuracy: 1%RH Barometric Pressure: 600hPa/mb~1100hPa/mb High accuracy: 1hPa/mb Power Supply: 2pcs LR6 AA batteries / DC 5V power adapter for Weather Station & Outdoor Sensor (Battery Not Included) Color: As Shown Material: ABS Package Contents: 1*Weather station 1*Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.