The device operates on the principle that mold begins to grow when surface moisture levels are near the condensation point, a.k.a. the dew point. The Mold Hunter measures an area's ambient dew point and compares it to the surface temperature of whatever you've targeted with the built-in laser pointer. (See closeup above.) The closer the dew point is to the surface temperature, the better the chance there's moisture in or behind the surface. Even if you've got no mold there, you may have conditions conducive to rust, corrosion or, to refer back to earlier point, general yuckiness.
CE-certified for safety, the half-pound device is powered by just a 9V battery.
AirTest Technologies • 1520 Cliveden Avenue, #9, Delta, British Columbia V3M 6J8 Canada • (604) 517-3888 • toll-free (888) 855-8880 • info@airtesttechnologies.com