Lux Products PSP511 is a versatile programmable thermostat compatible with various systems, including low voltage, millivolt, and single-stage heat pumps. Its user-friendly features make programming a breeze, including the patented Speed Dial for intuitive setup. The large digital display provides clear visibility, while the adjustable temperature differential and 5-2 day programming ensure optimal comfort and energy savings. Its system or battery power options provide flexibility, and the pre-programmed settings offer convenience. Additional notable features include:

• Adjustable minimum run time (5 or 2 minutes)