Programmable Thermostat

This is a direct replacement thermostat compatible with the Resideo TH109PROPLUS and similar line voltage electric heating applications. Engineered for baseboard, conventional, and radiant heating and cooling systems, this 4-wire digital non-programmable thermostat delivers reliable temperature management in commercial and residential settings where manual control is preferred. The unit operates on hardwired 240VAC power with 60 Hz frequency, eliminating the need for batteries and ensuring continuous operation. It features a digital display with backlight for easy visibility in any lighting condition, plus an on-screen heating power indicator that visually shows heating intensity levels. The thermostat maintains a comfortable temperature range from 37 Degrees F to 102 Degrees F, accommodating diverse climate control requirements. Housed in a compact white enclosure measuring 4.8 inches in height by 4.5 inches in width and 1 inch in depth, this device installs easily into standard wall-mounted applications without extensive modification. Its TRIAC control technology provides precise modulation of electric heating elements, delivering efficient and consistent performance. It serves as a dependable OEM-quality replacement suitable for retrofit installations and new construction projects.