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 ℃ 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!