Benetech Digital Sound Level Meter Review

measure noise value to find maxium/minimum value,also can lock the MAX/MIN value,convient to review the reading. microphone,which can quickly and accurately measure the decibels of sound;Measuring Range:30~130dBA;Frequency Response:31.5Hz~8KHz. separately,the backlight will be lighting up and flashing when the current value is over limit value , caring for your health anywhere anytime . data hold function, auto/ manual power off,Calibration function,which has been adjusted properly;This noise meter has been calibrated at the factory, the recommended calibration interval is one year.This noise meter has been calibrated at the factory. IF you want to calibrate it again after using a period of time.Please use 94dB@1KHz standard sound source. measurement of noise engineering, quality control, health prevention and various environmental noise,including noise measurement in such various places asfactories, offices, transporting routes, families, stereo equipment and other places.