What is the wet bulb?

Dry wet bulb is made up of two thermometers, one of the induction of gauze not package, called dry bulb thermometer, it is to measure the temperature of the air; Induction part of another package with icy gauze soaked with water or already, known as the wet bulb, because of the wet gauze ball evaporation heat, the former shows the degrees in unsaturated air is always higher than the latter. From the difference of the two with specialized meteorological tables found to absolute humidity. Its specific specification is as follows: model: WD - 5 types: external standard type glass thermometer structure: external standard type material: plastic shell temperature range: - 17/50C& F: precision & plusmn; 1 c / 2 f packing: 1 PC/white box product features: a dry bulb thermometer, a wet bulb, it is concluded that relative humidity.