Intrinsically Safe Dewpoint Analyzer is certified for use in Class I Division II hazardous locations. The XDT-NEMA will continually monitor air dryer performance, compressed air quality, and dry gas moisture, from ambient dew point levels to as low as -100ºC (-148ºF) up to +20ºC (+68ºF). It features two programmable alarm relays with programmable variable hysteresis, LCD backlight indicator, low screen life, uses an HTF Aluminum Oxide Sensor Technology, and IP65.