Product Type: Door and window sensor Integrated Sensors: Light sensor Power Source: Battery Connectivity Technology: Wireless - Bluetooth 5.1 LE Form Factor: CR2032 Included Accessories: 2 x stickers Warranty: 2-year warranty Width: 34 cm Depth: 3.27 cm Height: 1.45 cm Min Operating Temperature: -10 °C Max Operating Temperature: 50 °C Humidity Range Operating: 0 - 95% (non-condensing)