This equipment has been designed to meet the measurement requirement of Safety Engineers, Health, Indu-
strial Safety offices and Sound Quality control in various environment, which include factory, office, traffic,

family, and audio system.

Digital Sound Level Meter possesses the following features:

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

2. Accuracy up to ±1.5 dB

3.Measurement range: 30~130 dB

4. Weight A or weight C selection

5. Fast & Slow dynamic characteristic modes.

6. AC and DC output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.

7.Auto power off

Measuring range 30~130dBA、35~130dBC
Accuracy ± 1.5 dB (under reference conditions)
Frequency range 31.5Hz~8KHz
Level range 30~80,50~100,60~110,80~130, 30~130dB
Frequency weighting A / C
Digital Display 4digits
Resolution 0.1dB
Sample rate 2 times/second
Bar graph Display for 0~30dB: one scale unit denotes 2 dB
Forother levels: one scale unit denotes 1 dB
Over indication OVER / UNDER
AC output 0.707Vrms at FS output impedance
approx. 600 ohm
DC output 10mV/dB, output impendance approx. 100ohm
Time weight FAST / SLOW
Microphone 1/2 inch electret condenser microphone
Max MAX
Power supply 9V battery
Power life About 30 hours (alkaline battery)
Self calibration time 3s
Operating condition 0~40℃，10~80%RH
Storage condition -10~60℃，10~70%RH
Weight 230g (including battery)
Dimension 207*70*29mm