White Rodgers Non Programmable Thermostat 1Heat / 1 Cool (Battery Operated) WR-1F78144

The White Rodgers 1F78-144 (WR-1F78144) is a non-programmable thermostat designed for HVAC technicians seeking a straightforward, reliable solution for single-stage heating and cooling systems. It supports 1 heat and 1 cool stage, making it compatible with conventional 24V systems, including gas, oil, electric heat, and heat pumps without auxiliary heat. The thermostat operates on two AAA batteries, eliminating the need for a common wire (C-wire) and simplifying installation. Its large, backlit LCD display ensures easy readability, while the manual system switch (HEAT-OFF-COOL) and fan switch (AUTO-ON) provide straightforward operation. The 1F78-144 offers a temperature range of 45°F to 90°F and includes a low-battery indicator to alert users when it's time to replace the batteries. This thermostat is an ideal choice for technicians replacing outdated mechanical thermostats or upgrading to a digital model without the complexity of programmable features.