Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; Refrigerating control output delay protection;Alarm when temperature exceeds temperature limit or when sensor error. Front panel size:75(L)*34.5(W)(mm) Mounting size:71(L)x29(W)mm; sensor length:1m (include the probe) Product size75(L)x34.5(W)x85(D)mm; Technical Parameters Temperature measuring range:-50~99C; Resolution:0.1C; Accuracy:+/- 1C (-50~70C); Sensor error delay:1 minute Power supply:220VAC+/- 10%,50/60Hz; Power consumption:less than equal 3W; Sensor:NTC sensor (1PC); Relay contact capacity:Cool 10A/250VAC;Heat 10A/250VAC; mbient temperature:0~60C; Storage temperature:-30~75C; Relative humidity:20%~85% (No condensate). Material: ABS Package Contents:1 x Mini Digital Temperature Controller Thermostat 1 x Temperature sensor probe with 1M cable 1 x Instruction Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.