Description
The ACI Thermistor Duct Series features a stainless-steel probe with two, 22 AWG Etched Teflon
colored lead wires to differentiate the different sensor types. The sensors in this series are
manufactured using ACI’s proven double encapsulation process to eliminate the effects of
moisture on the sensors and increased response times from our high quality, thermally
conductive epoxy. The duct sensor is designed to be used in smaller duct applications and
includes an insulation pad for sealing your duct and dampening vibration. The sensor length
should be determined by the width or diameter of your duct, such that the tip of the probe
reaches the approximate center of the duct. Our standard enclosure options are the galvanized
enclosure “-GD” or plastic duct enclosure with hinged cover “-PB”. On larger ducts, you may
want to refer to our Rigid or Bendable Copper Averaging sensor for increased sensing points and better temperature control. This series can be
ordered with optional NEMA/IP rated weatherproof enclosures and NIST certificates as referenced on the back of the product data sheet.








