Model Number: Door Window 2 platform:Other,Alexa,Google Assistant Battery life:18 months Battery type:2xCR123A - NOT included Power supply AC:No Power supply DC:No Illumination measurement:Yes :No Open/:Yes Tilt angle detection:Yes Vibration detection:Yes Water detection:No Temperature measurement range: 40 ~ 60 1 Operational temperature: 10 to 50 Local and remote control:Yes Sunrise/:Yes Weekly Schedule:Yes Wireless/WiFi Protocol:802.11 b/g Radiofrequency:2400 - 2484 MHz Range:up to 50 m outdoors and up to 30 m indoors (depending on the materials) Material: plastic Color: White Package Contents: 2 x 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.