Wired Thermostats The simple electronically controlled wired thermostat for the air-conditioning unit.Wall mounting on the standard 2″x4″ flush-mounted junction box. Room 2 Thermostat Temperature control,3 fan speeds with sweep fan control,3–minute time delay for compressor protection. DR1 LED Thermostat LED display,Temperature control,3 fan speeds with auto fan control,3-minute time delay for compressor protection,Operating mode : Fan only, Cool, Heat (optional). DG2 LED Thermostat LED display, Temperature control, 3 fan speeds with auto fan control, 3-minute time delay for compressor protection, Operating mode : Fan only, Cool, Heat (optional). DG2 LCD Thermostat LCD display,Temperature control,3 fan speeds with auto fan control,3-minute time delay for compressor protection,Operating mode : Fan only, Cool, Heat (optional).