Description
The Laars Heating Systems FT1501 Outdoor Temperature Sensor is an exterior-mounted sensing part that reads ambient air temperature and relays that data to a compatible boiler control board. It acts as the primary input for outdoor reset logic, a method where the controller adjusts supply water temperature in response to shifting weather conditions rather than running at a fixed output. In certain hydronic HVAC systems, the sensor feeds continuous thermal readings into the control circuit, allowing the boiler to modulate firing cycles according to actual outdoor conditions rather than preset thresholds.
