RCL-02 Wireless Temperature and Light Sensor is designed for direct cooperation with selected exta free receivers. This sensor does not work with the EFC-02 controller. It can be successfully used in window blinds control or to maintain home comfort. When setpoints and hysteresis values ​​are set, the sensor sends the appropriate on / off commands to the associated system receivers. The 4 buttons and display interface allows you to quickly enter the settings and read the current temperature / luminance value. The sensor is powered by batteries (2 x LR03 AAA). The high degree of protection of the sensor housing (IP54) allows it to be installed outdoors. The sensor has special software solutions that extend the life of the battery. Wide measuring range, high measurement accuracy and high operating range are additional features of the sensor.