Key benefits — why this thermostat matters Quick, reliable replacement for existing wallmounted TStat units so you can restore temperature control without rewiring your system. Simplifies installation with clear wiring instructions and six color‑coded wires to reduce errors and speed setup. Digital temperature control and three user modes (fan, thermostat cool/heat, fan speed) give precise, adaptable comfort control for a variety of environments. What it does (functions and performance) Digital thermostat control provides stable temperature setting and responsive operation for heating and cooling cycles. Three adjustment modes: Thermostat (Cool/Heat): Set and hold a target temperature for automatic heating or cooling. Fan Mode: Run the fan independently of heating/cooling for ventilation. Fan Speed: Select fan speed to balance airflow and noise. Designed as a wallmounted replacement; retains familiar controls while upgrading to a digital interface. Compatibility and models Direct replacement for TStat wall mounted heating/cooling thermostats. Compatible model numbers: 8330336 8330337 8330338 8330339 8330368 8330386 Six colorcoded wires match standard wiring conventions for easy identification and connection. Installation details Includes detailed wiring instructions to guide a quick, correct installation. Six colorcoded wires make terminal matching straightforward and reduce install time and troubleshooting. Compact wallmounted form factor fits the same mounting footprint as original TStat units (check existing wiring and mounting before installation). Temperature range Digitally controlled temperature adjustment from 37℃ to 1℃ (98℉ to 33℉), enabling a wide range of comfort settings. Practical use scenarios RV climate control: an aging or malfunctioning RV thermostat to restore reliable heating and cooling control on trips and seasonal use. Onsite replacement: Swap in this unit for a failed wallmounted TStat in an office, workshop, or cabin without major rewiring. Fanonly ventilation: Use fan mode and fan speed control to ventilate a parked vehicle, small space, or during mild weather when neither heating nor cooling is needed. What to expect A straightforward, like‑for‑like replacement that preserves existing wiring and functionality while providing digital control and flexible fan options. Clear instructions and colorcoded wiring reduce installation time and the risk of connection errors. Note Verify compatibility with your existing system and the listed model numbers before .