A/AN-A-24'-BB - The copper capillary houses sensing elements which are wired in a series/parallel configuration to provide an averaged output. This unit has a metal bell box (BB) configuration which has a NEMA 3R rating and is designed for wet environments. 10K Ohms @ 77 Deg F (25 Deg C) Type III Thermistor. ACI averaging temperature sensors are designed for HVAC or Building Automation Systems. Specific applications include: zone control air handling unit and large sized ducts. Negative temperature coefficientBendable coppe NEMA 3R enclosure

A/AN-A-24'-PB - The standard plastic box-bendable copper averaging configuration has a mounting flange for quick installation and a foam pad to dampen vibrations. The copper capillary houses sensing elements which are wired in a series/parallel configuration to provide an averaged output. 10K Ohms @ 77 Deg F (25 Deg C) Type III Thermistor. ACI averaging temperature sensors are designed for HVAC or Building Automation Systems. Specific applications include: zone control air handling unit and large sized ducts. Negative temperature coefficientBendable coppe Easy open/close latch system (No screws)