... accordance with IEC 61672 and JJG188-2002 sound level meter testing regulation level II.HS5618A Integrating Sound Level Meter adopts 128×64 LCD display, menu operation ... 5kHz4. Frequency Weighting: A, C5.Time Weighting: F(Fast), S(Slow)6.Auto- Measuring: Leq,LAE,DL,Lmax,Ldn,Ld ... transmits the data to HS4784 printer or computer through R232C11. Calibration: Use HS6020 to calibrate to 93.8dB.12. Screen: ...