What is frequency range for this device?

The SL510 has a frequency range from 31.5Hz to 8KHz.

does make 20hz to 20khz readings?

Thank you so much for your interest in our products. The 407032 model has a measurement bandwidth between 31.5Hz to 8KHz. Please check all the specifications of this meter here: http://www.extech.com/products/resources/407732_UM-en.pdf

Hello Checker,The 407760 comes with software, tripod, USB extension cable, windscreen, and 3.6-Volt Lithium battery.Best Regards

The model presented says 'Extech 407730' but in the description and image apears Extech 407732, which you are sending?

I am not sure where 407730 is appearing besides the comparison table between the different models. For simplicity, this page is for the Extech 407732. You would get the item in the pictures.

Extech 407730 40 To 130 Decibel Digital Sound Level Meter

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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Description

🔊 Measure Like a Pro, Stay Ahead of the Noise Game

SMART SOUND TRACKING - Max/min recording and selectable A/C weighting with auto/manual ranging to capture every detail.
DUAL DISPLAY DYNAMICS - Large LCD screen with numeric and fast-responding analog bar graph for instant trend visualization.
LIGHT AS YOUR LIFESTYLE - Compact and lightweight at just 5.6 oz, designed for effortless handheld use or tripod mounting.
NOISE CONTROL MADE EASY - Ideal for workplace noise monitoring, audio system setup, and compliance with noise regulations.
PRECISION THAT SPEAKS VOLUMES - Accurately measures sound levels from 40 to 130 dB with ±2 dB accuracy for professional-grade monitoring.

The Extech 407730 Digital Sound Level Meter delivers precise sound measurements from 40 to 130 decibels with ±2 dB accuracy and 0.1 dB resolution. Featuring a large dual-mode LCD display and a fast analog bar graph, it offers real-time sound trend tracking. Lightweight and portable, it supports tripod mounting and includes user-friendly functions like max/min hold, A/C weighting, and auto/manual ranging—perfect for professionals managing workplace noise, audio installations, or regulatory compliance.

Specifications

ASIN	B000EWY67W
Amperage	300 Milliamps
Best Sellers Rank	#180,815 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #198 in Sound Measurement
Brand Name	Extech
Colour	Black and Yellow
Connector Type	3.5mm Audio Jack
Controls Type	Knob
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (221)
Global Trade Identification Number	00793950407301
Hardware Interface	3.5mm Audio
Item Dimensions	22.9 x 4.3 x 5.6 Centimeters
Manufacturer	Extech
Manufacturer Part Number	407730
Model Name	407730
Model Number	407730
Number Of Items	1
Number of Packs	1
Signal Format	Digital
UPC	793950407301
Voltage	9 Volts

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Extech 407730 40 to 130 Decibel Digital Sound Level Meter

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Description

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Common Questions