Alpina - Smart window opening sensor from Zigbee network

Product description

Zigbee intelligent door or window sensor by Alpina. It recognises if a door or window is open or closed. It is the perfect way to feel safe in your own home and to control the situation when you are away from your own flat or house. Pair it with the Alpina Smart Zigbee gate to connect with other products in the Alpina Smart range. Specifications: - Detection distance : ? 15 mm - Operating voltage : 3 V - Power supply : 1x CR2 lithium battery - Zigbee wireless distance : Up to 90 m (unobstructed) - Wireless technology (protocol) : Zigbee (IEEE 802.15.4) - Compatibility : Alpina Smart Zigbee Gateway - Dimensions : 57x28x18 mm, 31x16x12 mm - Frequency range : 2405-2480 MHz - Maximum RF output power : 6.289 dBm - Antenna gain : 2 dBi