Return difference to control trmperature;switch between Celsius and Celsius;Resoulution of temperature display is 0.1; User menu and administrator menu are separately set,convenient for operation and provide enough space for the adjustment of high-level management; Main function and features:Control modes among refrigeration ,defrost and fan; Multi-protection and alarming mode optional;, Weight: 0.5180863157 Pounds, Manufacturer: Jaywool