How it works: 1, measuring the wind speed of the basic principles of the instrument is the use of calorimetric principle wind speed. Measuring wind speed sensitive element is a hot ball of about 0.8mm in diameter, it is also known as hot bulb anemometer 2, the basic principle of temperature measurement: The instrument uses precision thermistor as the sensing element for measuring temperature. Use of the thermistor resistance varies with temperature characteristics of measuring temperature 3, measuring the relative humidity of the basic principle: The instrument used by the US company Honeywell as a measurement of relative humidity sensor, using its output varies with the relative humidity features to measuring the relative humidity of the impeller and the hot bulb anemometer anemometer anemometer difference (anemometer) is an instrument for measuring air flow rate. It's kind of more anemometers, weather stations most commonly used for the cup anemometer, which consists of three cross a 120 ° fixed to the bracket of parabolic taper empty glass composition sensor part, empty cup concave in one direction all along. Entire sensing part mounted on a vertical rotation axis, under the action of wind Testo anemometers, wind cup around the axis of rotation is proportional to the speed of the wind speed. Anemometer Features 1, high sensitivity and accurate measurement of 2, simple design 3, wind speed measurements can be separated from the handle body to facilitate the measurement of 4, 5 dual display LCD readout, wind speed measured by two meters to extend the helix 6, Low power consumption 7, data retention, maximum and minimum values ??hold function 8, low battery indicator 9, bearing: sapphire bearing 10, the temperature sensor: K-type thermocouple 11, operating temperature: 0 ~ 50 ℃ (32 ~ 122 ℉) 12, Operating Humidity: <80% RH13, Storage temperature: -40 ℃ ~ 60 ℃ (-40 ℉ ~ 140 ℉) 14, Battery Type: 9V15, battery life: 50 hours (300mA-hrs battery) 16, The average wind speed measured time: m / s about 0.6secknots about 1.2seckm / hr about 2.2sec17, size: anemometer: 150 × 72 × 35 (mm) fan: 66 × 132 × 29.2 (mm) 18, Weight: 350g ( battery included) 19, Accessories: Instructions 1, 9V battery one anemometer factory, NTC temperature sensor, infrared temperature probe, leather boxes and box electronic anemometer, Jinke instrument (online consultation), the anemometer Qingdao Branch of the Instrument Limited. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) is in Qingdao, Shandong analysis instruments leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Branch of the Instrument in leadership with the staff warmly welcome all inquiries negotiations to create the Branch of the Instrument better future.