Extech 407732 Low/High Range Sound Level Meter


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Extech 407732 Low/High Range Sound Level Meter


  • 407732 Sound Level Meter with Backlit Display
  • High accuracy meets ANSI S1.4-1983 and IEC 651 Type 2 standards
  • High and Low measuring ranges
    • Low: 35 to 100dB
    • High: 65 to 130dB
  • Data Hold and Max Hold functions
Extech 407732 Sound Level Meter with Backlit Display.

Type 2 Sound Meter
Sound Level Meter meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and speaker systems, and enforcing noise ordinances.

Additional Features
Measures from 35 to 130 dB in two ranges and has an accuracy of ±1.5 dB.Data Hold and Max Hold functions. Backlit display allows use in dimly lit areas.

What is a Sound Level Meter?
Sound level meters are instruments designed to respond to noise much like the human ear. The measurements taken by sound level meters are compared to known standards to determine if the noise level could have a detrimental effect on human hearing.

Types of Sound Level Meters

  • Type 3 — Low cost models for basic sound checks.
  • Type 2 — Models that meet OSHA and other ordinance testing requirements.
  • Type 1 — Precision for lab testing (Extech doesn't have one).
  • Dosimeters — Measure work noise exposure according to OSHA.
  • Analyzer — analyzes noise in narrow bands.

Click here for product datasheet


Display Counts 2000 count LCD
Range Low: 35 to 100dB
High 65 to 130dB
Basic Accuracy ±1.5dB
Weighting (A & C) Yes
Response Time (Fast/Slow) Yes
Condenser Microphone 0.5" (12.7mm)
Dimensions 8.2x2.1x1.25"(210x55x32mm)
Weight 8.1oz (230g)

Extech 407732 Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Environmental Testers / Physical Property/Sound Level Meters Template

Minimum Sound Level 35 dB
Maximum Sound Level 130 dB
Display (Sound Level Meter) Digital
A Frequency Weighting Yes
B Frequency Weighting No
C Frequency Weighting Yes
Accuracy ±1.5
Calibrator Capability No
Vibration Measurement No
Noise Level Measurement Yes
Fast/Slow Time Adjustment Yes
Min/Max Display Yes
Tripod Mount No
Type (Sound Level Meter) II
Product Images (click to enlarge)
  • Extech 407732 Low/High Range Sound Level Meter