[Standard]

The Baker B6030 Wet/Dry Bulb Hygrometer measures relative humidity by comparing readings of wet bulb and dry bulb thermometers using relative humidity tables supplied. Its accuracy is obtained by creating rapid air circulation around the bulbs. It is a non-mecury red spirit filled thermometer. This product includes a calibration certficate traceable to NIST (National Institute of Standards and Technology). Please note you may receive a "REED" branded product which will be the exact same product as shown in this listing.