The Dual Digital Temperature Controller is designed to allow precise control of the temperature in an aquarium and has 2 modes which allow control of both heating and cooling at the same time. Plug and play - no wiring required. Double mains power socket – one power socket for heater control and the other for fan/chiller control. Heating/cooling can be set to within 0.3 deg C of target temperature e.g. Control Range of 24.7 - 25.3 deg C (with set temp of 25 deg C). Audible and Visual Alarm Function e.g alarm sounds if temp below 24 deg C or above 26 deg C (with alarm set to 1 deg C). 2m long plastic coated temperature sensor with mounting suction cup. Heating Control (resistive load, such as heater) max 1600W. Cooling Control (inductive load, such as a chiller) max 600W. Display: Back lit blue LCD – permanently lit. Power off memory function The plastic coated temperature sensor is waterproof and suitable for use in a marine aquarium. Specifications Display panel size: 95mm x 50mm x 15mm Control socket size: 160mm x 70mm x 45mm