1. This unite was designed according to the IEC651 YPE2& ANSI SI.4TYPE2 for sound level meter.

2. Instantaneous sound measure function.

3. Measurement range 30-130 decibel

4. With two equivalent weighted sound pressure levels A and C.

5. Fast & slow dynamic characteristic modes.

6. AC and DC signed output for frequency analyzer levels re corder, FFT analyzer graphic recorder etc.