Housed in rugged NEMA 6 polypropylene enclosure with carrying handle, Easidew Plus Portable measures dew point in compressed air and other gases over measurement range of -58 to +68°F, at pressures up to 4,350 psig. Unit provides T95 response to -31°F in less than 10 minutes and offers measurement accuracy of ±3.6°F. Operating up to 16 hr on rechargeable NiMH battery pack, hygrometer includes integral stainless steel sampling system with particulate filter and sample tubing.