The sensor LED screen displays the pressure value. Power supply mode: 5V1A USB cable, note: there is no built-in battery and real-time power supply is required Atmospheric pressure detection range: 300-1000hPa Temperature range: 0-60 Humidity range: 0-100% Note: Zigbee and Bluetooth mesh protocols only support Tuya gateway communication and cannot connect to other gateways. Applicable APP: Tuya/Smart Life APP Support home automation settings, please select the automation settings in the APP. Colour:White Material:Plastic Communication protocols: Zigbee Package Contents: 1x Pressure 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.