Tenmars ST-109R Class 1 Sound Level Meter

- Frequency range: 10Hz ~ 20kHz.

- Measurement range: 30dB ~ 130dB.

- Dynamic range: 60dB.

- A/C/Z frequency weighting.

- Fast, Slow, Impulse.

- DC & AC Output.

- Bargraph display.

- USB interface.

- Storage 37, 000 records, auto-mating transfer to micro SD card.

- Comply with the following standards:

IEC 61672-1: 2002 Class 1

ANSI S1.4 Type 1

CNS NO.7129 Type 1

JJG-188-2002 Class 1