HONEYWELL C7600A1002 Humidity Sensor

http://www.dticorp.com/catalog/honeywell-c7600a1002-humidity-sensor-p-3356.html

HONEYWELL C7600A1002 Duct or Wall mounted Solid State Humidity Sensor. Used with any controller capable of processing a 4-20 mA or 2-10 Vdc signal.
Features
• Provide humidity sensing through a long-lasting thick-film capacitive polyimide sensing element that is both accurate and stable over time.
• Vents in top cover provide for airflow to humidity sensing element inside.
• Mounts easily because of compact size and lightweight construction.
• Remains operational after exposure to all outdoor air humidity extremes. 5% RH accuracy from 30% to 70% RH