Description: Made of high quality material,durable.Easy and simple to operate. Temperature calibration function (-10~10C, default: 0C) Alarm when temp exceed temperature limit or sensor error All parameters setting can be saved after short circuit. Suitable for aquarium, pet breeing, domestic freezer,incubator, BBQ, water tanks, refrigerator, industrial chiller,steamer, industrial equipment and other temperature controlled system. Specification: Circuit Board:Approx.157x120mm/6.18x4.72in Display Screen:Approx.92x66mm/3.62x2.60in Controlling range: 0.0~50.0C Measuring range: 0.0~50.0C Resolution: 0.1C; Accuracy: 1.0C Over heat alarm: 0.0-5.0C(can be modified);Time unit: hour (24:00 format) Package Includes: 1 Piece Digital Thermostat 1 Piece Manual Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2cm error in size.