This equipment has been designed to meet the measurement requirement of Safety Engineers, Health, Industrial Safety offices and Sound Quality control in various environment, which include factory, office, traffic, family, and audio system. This equipment has the following functions:

* Accuracy up to +/-1.5dB
* Measurement range is 30 to 130dB
* Fast/Slow Time weigting selection
* Automatic backlight
* The maximum value holding function
* Auto power off 10 minutes
* A/C Frequency weighting selection
* Both AC and PWM signal output are available
* Calendar function
* 4700 data record function
* Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, and printing graph&data functions.