Usage Tips:Temperature measurement, LCD display. It has the function of refrigeration, heating control. Temperature setting upper and lower limits. Simple operation, suitable for seafood machines. Easy to install and use, very convenient. Long press the UP button the temperature display flashing, press the UP or DOWN button Set the beginning of the temperature value. Press Down the display button to stop temperature. Long press the Down button the temperature display flashing, press the UP or Down button Set to stop the temperature value. Supply voltage: 220V. Temperature range: -50-120 degrees. Range of temperature control: -50-120 degrees. Temperature control accuracy: + 0.1 degrees. Temperature measurement accuracy: + 0.2 degrees. Output type: direct output. Output capacity: maximum 10A. Colour:Gray+white Material:plastic Size:60x45x31mm Mounting hole distance: 73mm (hole distance 4mm). Package Contents: 1 x LED temperature controller Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.