How to choose the dry wet bulb

Dry wet bulb is composed of two specifications identical thermometer, a known as dry bulb thermometer, the bubble is exposed to air, temperature measure ambient temperature; Another called wet bulb, with special gauze soaked up the temperature, humid and try to keep the gauze, gauze moisture evaporate into the surrounding air and take away heat, make wet bulb temperature drops. Related to ambient air moisture evaporation rate, the lower the humidity of the air, the faster the evaporation rate, lead to lower wet bulb temperature. Visible, air humidity and there is a certain functional relation between wet and dry bulb temperature difference. Psychrometer is the use of this principle, by measuring the dry bulb temperature and wet bulb temperature to determine the humidity of the air. So how to choose dry wet bulb? In fact judge of a product, have direct relationship with the material of raw materials. If parts of the materials are required, so the quality of the products will be guaranteed. We will with WD - today 5 the dry wet bulb to tell everyone about the component of dry wet bulb. Model: WD - 5 types: external standard type glass thermometer structure: external standard type material: plastic shell size: remove seven bottles and hook. 5 * 21. 5 cm, the thickness of 2. The temperature range of 2 cm: - 17/50C& F: precision & plusmn; 1 c / 2 f