Description
The Schneider Electric (Barber Colman) ETD500-4 4″ Duct Temperature Sensor is duct-mounted and measures air temperature within ventilation pathways. It provides a 10K Ohm thermistor output across a -40F to 302F range for control feedback in air distribution networks. Across HVAC systems, it operates in air handling units, rooftop equipment, and furnace duct sections, supporting temperature monitoring in moving air streams and zoning control loops. It works in duct locations where airflow conditions shift across operating cycles, delivering reference data for regulation of temperature balance across system pathways.









