I use the device to start the pool pump only at appropriate temperatures. Cooling mode! Adjust only daily or at larger Wetteraenderungen the inputs Auschalttempaturen (on the pool temperature, the pool is 24 degrees and should be warmer, then turn on and off at 24.2 at 24) and of course change the sensor near or below the solar panels. The just over 2 meter cables are completely made with me. Works perfectly. The device is easy to use and even with less light well readable, the manual mode switch is selected quickly. Robust housing.