The CC2022-04 is a digital walk-in door switch suitable for cold storage needs of temperature display and lighting control. With high and low-temperature alarm settings the CC2022-04 will flash a temperature when the displayed temperature is higher or lower than the set temperature. With touch buttons this temperature display can control devices such as lighting, fans, and motors while also detecting the operational status of these devices. When these devices are in operation, the indicator light of the control button lights up; when not in operation, the indicator light turns off. Additionally the CC2022-04 has a backup battery interface, allowing continuous power from a 9V battery for temperature display and control during power outages. The sleek CC2022-04 design fits standard American switch dimensions making installation of this high brightness LED display door panel easy.