Voltcraft ir scan 350rh infrared thermometer voltcraft 100923 the voltcraft ir scan 350rh infrared thermometer is an easy to use product which enables you to detect hot or cold spots in the home or workplace br br with an in built integrated moisture meter the ir scan 350rh detects dampness at the touch of a button the illuminated display can show the ambient temperature ambient humidity dew point temperature and the temperature of the surface being measured br br just point it