High-precision condenser microphone, without contact, can measure the quality of sound in various environments,Quickly and accurately display test results.The measurement mode can be selected according to the needs of use.After connecting to the computer, real-time data sampling and analysis, download and storage of printing data and curve analysis.Use the color display mode to view more intuitively.Frequency weighting A is the amount of noise perceived by the human ear, and frequency weighting C is the characteristic of mechanical noise.Printer mechanical noise measurementIndoor noise measurement in shopping mallsCar indoor noise measurementThe back of the instrument is designed with a bracket, which can be placed on the desktop for easy viewing of dataPortable and easy to use.