Features: LED Display: With clear LED display for better readability.The product has heating or cooling control and a wider temperature measuring range. Practical: All parameters setting can be saved after short circuit.High Control precision 0.1 centigrade. Easy to Install:According to different installation methods you can directly install it open holes for installation or open holes for installation according to the appearance size. Professional Machine: Control the temperature by setting the temperature set value and the difference value. Refrigerating control output delay protection and temperature calibrating. Wide Application: Can be used for home freezer water tanks refrigerator industrial chiller steamer industrial equipment and other temperature-controlled system. Specification: Color: Black Material: Plastic Size: Approx.7.9x4.3x2.6cm/3.11x1.69x1.02 inch Product Model: W3230 Supply Voltage: DC5V/12V/24V AC100-220V Resolution: -9.9~99.9 At 0.1 Other Temperature Range 1 Temperature Control Range: -50~110 Temperature Measurement Accuracy: 0.1 Control Accuracy: 0.1 Environmental Requirements: -10~60 Humidity 20%~85% Notes: 1. Due to the lighting effects and shooting angles there is a color difference in the product please understand. 2. Due to manual measurement there is a tolerance in the product size. includes: 1 *Thermostat