A digital A/C thermostat is a device that is used to control the temperature of an air conditioning system. It is typically installed in the wall and is used to regulate the temperature of a room or area. It works by sensing the temperature of the air in the room and then adjusting the air conditioning system accordingly. The digital thermostat has a display which shows the current temperature and allows the user to set the desired temperature. The thermostat can also be programmed to turn the air conditioning system on and off at certain times, making it an energy-efficient way to control the temperature in a room. Digital A/C thermostats are becoming increasingly popular due to their ease of use and energy-saving capabilities. They are a great way to ensure that your air conditioning system is running efficiently and that your home is comfortable all year round.