The DF760 hood is used to measure ventilation and exhaust air in HVAC systems. The instrument consists of a gauge, a nylon hood, a handle and a base. The struts used in the air volume hood are made of fiberglass to provide strong support for the hood. The measuring rectangle of the air volume hood is arranged on the base of the air volume hood, and accurate measurement is realized through 16 measuring points covering the upper section and the lower section of the base of the wind volume hood; and the wind volume hood uses a differential pressure sensor for measurement, and meanwhile, the atmospheric pressure can be corrected.
The DF681 is a portable wind speed measuring instrument. Aluminum metal shell, large screen display, rechargeable design, standard USB-a charging interface, pluggable thermal probe. It is widely used in measuring pipeline environment, heating, air conditioning and refrigeration, environmental protection, energy saving monitoring, meteorology, agriculture, refrigeration, drying, labor health investigation, clean workshop, chemical fiber textile, various wind speed experiments and so on.
DT201 temperature verifier is composed of standard thermocouple produced by Dewey, data acquisition mainframe, computer software and portable computer, and optional dry-well temperature bath for standard thermocouple calibration. This system is suitable for the equipments with strict temperature requirements such as pharmacy, food, biotechnology, hatching and medical treatment, etc. It can form complete verification documents, various statistical reports and historical records for future reference
ATH200 hand-held temperature and humidity detector adopts domestic high-quality capacitive digital sensor, which has the advantages of high measurement accuracy, fast response time and strong anti-interference ability, and can quickly and accurately measure air humidity and temperature.
The D398 pressure calibration stick provides the pressure source for calibrating the differential pressure, pressure gauge and differential pressure/pressure transmitter, and can also be used to set the setting value of the differential pressure/pressure switch. An additional standard pressure gauge is required. Can be fine-tune to produce a pressure of from a few tens of Pa to 5 bar.