Freezer Temperature Controller Digital External Fahrenheit Celsius Switchable Refrigeration black

Freezer Temperature Controller Digital External Fahrenheit Celsius Switchable Refrigeration black.Feature: 1. MAIN APPLICATION: Temperature controller can be used for cold storage, freezer medical storage, fruit and vegetable storage, which shows degrees Celsius, degrees Fahrenheit 2. FLAME RETARDANT AND LED DISPLAY: Digital freezer temperature controller is controlled by sensor wire and transformer, ABS flame retardant shell, waterproof and durable, possess stable performance; LED large digital