Integrating Sound Level Meter with SPL & Leq Measurement
Model: SL-4035SD

This meter has the additional feature of signal integration over a programmable interval with calculation of SPL ( Sound Pressure Level) and Leq (Equivalent continuous noise level).
With logging at intervals from 1 second to 3600 seconds and data saved to SD card in EXCEL format.

Range 30 to 130dB resolution 0.1dB
Frequency 31.5Hz – 8000Hz
Real time clock – data logged to SD card
MAX, MIN, HOLD, PEAK HOLD
Calibrate using external sound source – available from this site
Manual recording of data to 99 records