Description
The Automation Components Inc (ACI) 122028 Duct Thermistor 10″ A capillary is a sensor used to measure air temperature inside airflow channels. It operates using a 10k NTC element that changes resistance in response to variations, with a 4″ probe inserted into its lead cable transmitting the signal to a control system. It is commonly installed in air handling units, rooftop systems, and ventilation ductwork during commissioning or sensor replacement to monitor supply, return, or mixed air conditions. It works as a feedback element for temperature regulation and control in HVAC systems.
