It is intended for the precise temperature control of suitable liquids in a reservoir. Simple, intuitive operation. Displays actual and set point temperature simultaneously. Attaches securely to both flat and rounded tank walls. Converts any tank or vessel up to 20 liters into a reliable circulating bath. Fully enclosed housing prevents direct contact with pump and heater. Suitable for use with Class I non-flammable fluids per DIN 12876-1