The 50226 (LL357D4) is a thermostat that operates at 24V and two-stage heating and cooling with 45 to 90ºF (7 to 32ºC) temperature range.  It features a large backlit digital display that supports both Celsius and Fahrenheit readings.  It also includes room temperature offset calibration and a filter check timer to monitor fan run time.

The Simple Comfort AS7805 thermostat is suitable for Marvair ComPac I vertical packaged wall mount air conditioner, ComPac II air conditioner with built-in economizer and other environmental control units (ECU).  It has setpoints that are permanently held in memory, even during power outages, ensuring consistent operation.  The unit also has status indicator lights which lights up red when heating and green when cooling.

The 50226 thermostat is easy to install with the included screws and wall plug.  It also has terminal connections for thermostat wire.