
Benetech GM1357 Digital Sound Level Meter 30~130dBA 35~130dBC 31.5Hz~8.5KHz AC/DC output
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. With two equivalent weighted sound pressure levels, A and C. 5. Fast & Slow dynamic characteristic modes. 6. AC and DC output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc. Specifications Measuring range 30~130dBA、35~130dBC Accuracy +/- 1.5 dB (under reference conditions) Frequency range 31.5Hz~8.5KHz Level range 30~80,50~100,60~110,80~130, 30~130dB Linearity range 50dB / 100dB Frequency weighting A / C Digital Display 4digits Resolution 0.1dB Sample rate 2 times/second Bar graph 50 dB scale at 1 dB step for monitoring current sound pressure level displaySample rate: 20times/second Over indication OVER / UNDER AC output 0.707Vrms at FS output imp