JBL ProTemp CoolControl regulates the cooling fan units between 1 and 50 W (e.g., JBL Cooler, all sizes) and measures the temperature in the aquarium with its own temperature sensor.JBL ProTemp CoolControll:+ connected via a DC 5/2 mm connector with the cooling fan+ Temperature selector ranging between 18 and 36C+ Switch for automatic, manual or off+ Includes power supply and functional diode controller+ 12 V DC over power supply of the cooling fanPackage contents: thermostat with temperature sensor and 132 cm connection cable to the JBL Cooler, suction holder for temperature sensor (90 cm cable) and double-sided adhesive tape for attachment