ZRQF-F30J products specifications of the test object and humidity, wind speed range of air flow at atmospheric pressure 0.05 ~ 30.0m / s precision 0.05 ~ 5.00m / s: ± (reading 3% +0.1) m / s; 5.0 ~ 30.0m / s: ± (reading 3% +0.2) m / s resolution of 0.01m / s responsiveness ≤3s display the remaining battery level, work status, display hold, Units Select Dimensions 210 × 97 × 57 mm Power 4 AAA alkaline AAA batteries Temperature range -10 ℃ ~ 40 ℃ Humidity ≤90% RH Storage temperature range -10 ℃ ~ 50 ℃ weight ≯700g accessories Operating Instructions, seismic tank, battery design is more ergonomic shape, with the appearance of Patent probe added when a black handle, host integration lead probe, not damaged; the front flexible and convenient measurement aneroid barometer horizontal use, dust-proof pouches tip of the probe configuration probe scalable system to improve system up to 120cm stable performance, a generation before solve the phenomenon of death, with the use of computer error function automatically fold Edit this paragraph noisemeter aneroid barometer or not using the correct method to use, directly affect the accuracy of measurement results. Aneroid barometer measuring time and space, the instrument should be selected according to the situation is good right position, hands flat grip noise measurement noise with sound level meter, according to the sensitivity of the response headers can be divided into four categories: 1, "slow." Meter time constant of 1000ms aneroid barometer proxy - like for measuring steady state noise, the measured value is a valid value. 2, "fast." Meter time constant is 125ms, typically used for measuring fluctuations are not stationary noise and traffic noise. Fast file close to the human ear response to sound. 3, "pulse or pulse to keep." Hands rise time is 35ms, for measuring long duration pulse noise, such as punching, press hammer, the measured value for the maximum RMS. 4, "peak hold." Handles rise time of less than 20ms. Pulse sound measurement for a very short duration, such as guns, cannons and explosions, the measured value is the peak. That is the maximum. Rangefinder investment line of laser altimeter instrument Level meter gauge flat instrument GPS waveform recorder test fixture voltage and current loggers dataset recorder chart recorder Flow Totalizer instrument. Aneroid barometer use | Jinke Instruments (certified) | aneroid barometer provided by Qingdao Branch of the Instrument Co., Ltd. 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.