Features: WDF18-L/WDF20-L/WDF19-K/WDF22-L Refrigerator Thermostats Metal Temperature Controllers Compatible with household use These refrigerator thermostats replace broken thermostats and have D-shaped shafts. Controls the temperature of refrigerators, display counters, freezers, beverage coolers, and similar products. Easy-to-use manual control. Used Compatible with hotels, bars, cars, vehicles, apartments, and other places. WDF18-L, WDF20-L, and WDF19-K belong to refrigeration temperature control, which is suitable Compatible with household refrigerators and installed in refrigeration and freezing compartments. WPF22-L and WPF24-L belong to freezer temperature control and are suitable Compatible with freezers and some small single-door refrigerators with operating tables. (Not applicable to refrigerators, beverage display counters, and commercial freezers) Selection criteria: 1. Check if the machine is of WDF type or WPF type (the two types are not universal). 2. The thermostats do not have to be of the same model, but they can be universal if used on the same type and the same cooling equipment. 3. Check if the appearance is similar and the mounting method is the same, otherwise they will not be installed Compatible with seeing if the probes are long enough. The long one is usually short, and the short one is usually not universal. Working voltage: AC250V Current: 4A/5A, 50Hz/60Hz Heating temperature: -1℃ to -9℃ Heating temperature: -20℃ to 25℃ Connections: 2 Material: Metal, Plastic Dimensions: approx. 5.4x2.5x5.6cm(2.13x0.98x2.20in) Cable length: approx. 85cm(33.46in) Color: As the pictures show. Quantity: 1pc Note: The size is Compatible with manual measurement, there may be 0 to 2 cm error, which is normal. And due to the difference between different monitors, the picture may deviate from the actual color of the item. Thank you! Package includes: (Without retail Compatible with packing) 1 x pc