1) It is designed according to the IEC651 TYPE2 & ANSI S1.4 TYPE2

2) Modern compact portable design

3) Accuracy up to +-1.5dB

4) Measurement range: 30dBA-130dBA

5) Max hold

6) Auto backlight display

7) Auto power off

8) This equipment has been designed to meet the measurement requirement of safety engineeers health industrial safety offices and sound quality control in various environment which included factory office traffic family and audio system

*Specification:

-Accuracy: 1.5 dB

-Digit & Resolution: 4 & 0.1 dB

-Frequency response: 31.5Hz ~8.5KHz

-Sampling rate: 2times/second

-Microphone: 1/2 inch polarization capacitance microphone

-Low battery indication

-Power: 9V battery x 1pcs or DC 6V 100mA adapter

-Digital display: 4 digits

-Size: 149x52x30mm