A/1K-2W-D-18"-EH - 1000 Ohms @ 32 degrees F (2 wir platinum RTD sensing element) with a 0.00385 temperature coefficient. The Euro enclosure configuration has a mounting flange for quick installation and is corrosion/moisture resistant. ACI duct temperature sensors are designed for HVAC Building Automation and light industrial systems. Specific applications include: zone control air handling unit and temperature monitoring. Positive temperature coefficient Double encapsulated sensor Built in mounting flange Water resistant