1Two modes:switch the modes between heating and refrigerating. 2Control temperature by setting the temperature setting value and the difference value. 3Temperature calibration,refrigerating control output delay protection; 4Alarm when temperature exceeds temperature limit or when sensor error. 5High accuracy of temperature measurement and clear temperature value. 1This controller is suitable for temperature control of the middle and low temperature cold storage or heating equipment. 2High accuracy of temperature measurement,clear temperature value and more convenient observation. 3Can be used for domestic freezer, water tanks, refrigerator,industrial chiller, steamer, industrial equipment and other temperature control applications. specification Model:STC-100A Relay capacity:10A(05HP)/220VAC Temperature measure range: -40~99C Temperature controlling range: -40~99C Resolution: 1C Accuracy: 1 C05digit Ambient requirements: temperature: 0-60C humidity: 20%-85%(No condensate) Consumption:3W Input: 1 NTC sensor Sensor lenth:2M(include the probe) Delay time when sensor error:1 min Safe level of the front panel:IP54 Storage temperature:-30C - 75C Front Panel Size:77(L)x345(W)mm/3x135in Installing hole Size:71(L)x29(W)mm Item size:77(L)x345(W)x62mm(D)/3x135x242in Colour: Black material: plastic Package Contents:1 x Temperature Controller Only the above package content, other products are not included. Note: Light 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.