Extech Integrating Sound Meter/Logger


The Integrating Sound Level Meter is a combination meter and datalogger for monitoring SPL, Leq, SEL, MaxL and MinL in a 30dB to 130dB range. Its handheld design and LCD display allow for easy use and viewing of measuring sound levels. The LCD screen is able to switch between four display modes, has an analog bargraph to display the current relative range of input, and a built-in, real time calender and clock.

This logger can record up to 32,000 readings on Impulse/Fast/Slow settings, and has a programmable recording time to begin logging. This logger can either be used manually, or be setup with the included tripod stand to work autonomously.

Included with each Sound Level Meter
>> Wind Shield
>> Adjustment Screwdriver
>> RS-232 Cable
>> 9 to 25 Pin Gender Changer
>> Windows PC Software
>> AA Battery
>> Carrying Case

NOTE: Large Quantity Discounts Are Available!

Sound Level Meter Features

  • Perform Leq and SEL measurements
  • OSHA Compliance Testing
  • Noise Ordinance
  • Machine Noise Evaluation
  • Data Storage for pertinent records

Sound Level Meter Specifications

Applicable Standards IEC 651 And 804 Type 2, ANSI S1.4 Type 2
Accuracy ±1.5dB (ref 94dB@1KHz)


Digital Display 4 digital LCD
Measurement Parameters SPL, Leq, SEL, MaxL, MinL
Measurement Range 30dB to 130dB
Linearity Range 100dB
Measurement Frequency Range 31.5Hz to 8KHz
Frequency Weighting A and C
Response Impulse, Fast, Slow
Microphone 1/2" Electret condenser microphone
Sampling Time Updated every 0.5s
Bargraph 4dB steps, 100dB range, 100ms update
Analog AC/DC Output 2Vrms (at full scale), 10mVDC/dB
Power Supply Four 1.5V AA batteries, Optional AC adapter
Battery Life Approximately 20 hours
Dimensions 10.4" x 2.8" x 0.8" (265mm x 72mm x 21mm)
Weight 10.9oz (310g)

Description Part Number Qty 10+
Extech Integrating Sound Level Datalogger 407780 call
Optional Accessories
Extech 15ft (4.7m) Microphone Extension Cable 407764-EXT call
Extech AC/DC Recorder Output Cable 40705X call
Extech 94/114dB Sound Calibrator (0.5", 1" microphones) 407766 call
Extech Replacement Thermal Paper (5 pack) 422378 call
USB Serial Adapter CABLE-USB232 call
Extech 110 Volt AC Adapter 144118 call
Extech 220 Volt AC Adapter 144220 call
Extech 240 Volt AC Adapter 144240 call