REED Instruments SD-4023 Sound Level Meter, Datalogger, 30 to 130dB

This SD series sound level meter has triple range measurement and features user selectable sampling rates from 1 to 3600 seconds. Using an SD card (up to 16Gb) a user can select a desired sampling rate and quickly generate an Excel file with raw data, all without the use of software. Optional accessories include a tripod and AC adapter for continuous long-term monitoring and PC software that allows a user to tracking live measurements. Features include; High accuracy of ±1.4 dB meets Type 2 standards, Triple range measurement (50dB dynamic range), A & C frequency weighting, Fast & Slow time weighting, Real time data logger with integral SD memory card, User selectable sampling rate from 1 to 3600 seconds, Large, easy-to-read backlit LCD display, Peak hold, Data hold and Min/Max hold, Optional PC software features live tracking via USB connection (software and USB cable sold separately), Tripod mount for long-term monitoring, Low battery indicator and auto shut off.