Model: SD-4023 | UPC: 800837001856

Real-time data logger with an integrated SD memory card (optional) measures/records general sound levels and meets IEC 61672-1 Type 2 standards.

REED SD-4023 Offers

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 the desired sampling rate and quickly generate an Excel file with raw data, all without the use of the software. Optional accessories include a tripod and AC adapter for continuous long-term monitoring and PC software that allows a user to track live measurements.

What’s included with the REED SD-4023

  • Data Logging Sound Level Meter
  • Batteries


  • 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
  • Easy-to-read backlit LCD display
  • Peak hold, Data hold and Min/Max hold
  • Optional PC software features live tracking via USB connection
  • Tripod mount for long-term monitoring
  • Low battery indicator and auto shut off

Ideal Applications for the REED SD-4023

  • Preventative Maintenance
  • Industrial Machinery/Equipment
  • Construction Sites
  • Ensuring Safe Working Conditions
  • Public Venues / Concerts
  • Code Enforcement
  • Traffic
  • Appliance Noise Testing
  • Long-term Measurement
  • Recording of Acoustic Levels for Environmental Impact Studies