Features: High performance, multi-purpose. Come with 2pcs 1.5meters temperature sensor. Smart-control, light control, defrost, keep in cold storage, freeze. Strong anti-interference, can cope with various complex working conditions. It can prevent the power-cable from being connected- in series with Thunder and damage the instrument, and reduce the instrument failure rate, save user costs-. Specifications: Material: ABS Temperature Range: -50 to 100℃ Measurement Error: 1℃ Working Voltage: AC110/220V 60/50Hz Resolution: 0.5℃ Size: Approx. 83x75.8x70.6mm/3.27x2.98x2.78in Hole Size: Approx. 71x28mm/2.80x1.10in Package Includes: 1 Set Temperature Controller note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.