![CDATA[The FTKB wireless window/door contact is a compact smart home sensor (75x25x12 mm) that is powered by a solar cell and a long-life button cell (CR2032). From 100 lux, the solar cell takes over the power supply, otherwise the battery lasts for several years. The sensor sends a signal twice every time the window or door is opened and closed and a status message every eight minutes. The device is attached using adhesive. To learn it into a system, the housing must be opened and the learning button pressed. The sensor is compatible with numerous actuators, including models that switch off heaters and air conditioning systems when the window is open. The distance between the sensor and the magnet must be a maximum of 5 mm.]]>
