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Digital Hygrometers. Digital hygrometer sense humidity by means of non-moving sensors whose electrical resistance is affected by moisture. The Weather Store offers a great selection of fine digital hygrometers for precisely measuring humidity. Digital hygrometers offer memory for high and low readings, don't fall out of calibration, and offer very good accuracy.
Pocketsize hygrometer. Waterproof hygrometer. Humidity dew point meter. Are used for accurate relative air humidity and temperature measurements. PWT-101 is a pocketsize hygrometer connected with sensor without cable. PWT-102 is connected with the sensor by cable. PWT-103 additionally enables determining of dew point and is equipped with surface temperature probe.