anemometer different seasons and different geographical situation, can make to the atmosphere wind direction changes constantly. Such as the beach day and night the wind is different, the winter and summer monsoon are different. Research direction of the wind can help us to predict and study of climate change. Research direction you need to use the anemometer. The design of the anemometer is dart more, also have made animal forms, like a rooster modelling. Anemometer arrows feather part will be the wind to turn. Anemometer device in no buildings or trees, such as blocking the wind moving place. Purpose and scope of QDP series hot bulb electrical anemometer, used in heating, ventilation, air conditioning, meteorology, agriculture, refrigeration dry, labor health survey and so on various aspects, requires the determination of indoor and outdoor or model can be used when air velocity, is a kind of measuring basic instrument of low wind speed. The product was evaluated by the Beijing municipal commission of economy in 1987, Beijing high quality products. The working principle of this instrument by the hot bulb sensor and measuring instrument of two parts. Sensor head has a tiny glass ball, burn with heating glass ball nichrome wire coil and two thermocouples. Connection of the cold junction of the thermocouple in phosphor bronze pillars, directly exposed to the airstream, when a certain size of electric current through the heating coil, glass ball is heated to a certain temperature, the temperature and air flow rate, flow velocity hours at higher temperature, and temperature is low.

wind speed control, rheumatism, infrared temperature

wind speed conversion components, temperature, flow rate and infrared thermometer

minimum/maximum wind speed control

2/3 v maximum and average wind flow control

data maintain/storage/and delete

low battery indicator function

auto power off function ( If you don't operate for 10 minutes, would automatically shut off the power supply)

500 records stored

backlit

use USB cable to connect the computer port

audio button convert

big LCD display

risk control panel extends