HMIP SRH - HomeMatic IP window handle sensor

"Open, tilted or closed windows are detected and identified via the position of the window handle. Can be used to trigger an alarm Allows the room temperature to be lowered automatically through ventilation Fits under all common window handle models — subtle and unobtrusive thanks to its compact design Battery operated, no cabling necessary Easy to install without causing damage to the window Suitable for right- or left-opening windows White and silver cover included in delivery for easy customisation to match your window handle Can be used with the Access Point in conjunction with the Homematic IP app, the Homematic CCU2 central control unit, or with many different partner solutions Supply voltage 1 x 1.5-V LR03/Micro/AAA Power consumption max. 100 mA Battery life 2 years (typical) Protection class: IP20 Ambient temperature: -10 to +55°C Dimensions (W x H x D) 32 x 143 x 16 mm Weight: 47 g (including batteries) Radio frequency: 868.3 MHz/869.525 MHz Typical Wireless free field range 160 m"