Box size:5x7.8x7.8cm Product weight:90g APP:Tuya Smart / Smart Life USB Input: DC5V Battery Input: DC3V LR03*2(Not included in delivery) Static current: 75uA Alarm current: 135mA Low voltage noticiation: 2.4V WiFi Standard: 2.4GHz, 802.11b/g Detect Temperature: -10-+60 Detect Humidty: 0-100%RH Alarm sound volume: 55db/1m Installation method: Wall mounted/ Horizontal placement Working Temperature: -10-+60 Working Humidity: 90%RH Colour:White Material:ABS Package Contents: 1 * emperature Humidity Sensor (Two AA batteries are not included in the shipment) 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.