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.

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📈 Measure sound like a pro—because every decibel counts!

SMART POWER MANAGEMENT - Auto power-off feature conserves battery life so your device is ready when you are.
TRACK YOUR NOISE FOOTPRINT - Records max and minimum sound levels over time, perfect for monitoring environments or compliance.
PRECISION THAT SPEAKS VOLUMES - Measures sound from whisper-quiet 40dB to booming 130dB with 0.1dB resolution for ultra-accurate readings.
COMPACT LIGHTWEIGHT AND READY - Sleek white design at just 230g fits perfectly in your professional toolkit.
INSTANT INSIGHT WITH ANALOG FLAIR - Fast-response analog bar graph lets you visualize sound levels in real time—never miss a peak.

The Extech 407730 is a precision sound level meter measuring 40-130dB with 0.1dB resolution and a fast analog bar graph. It records max/min values, features auto power-off, and is powered by a 9V battery, making it a reliable, portable tool for professionals monitoring noise levels.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Brand	EXTECH
Model Number	407730
Product Dimensions	22.86 x 4.32 x 5.59 cm; 230 g
Color	white
Name List for Name Plates	Single Range
Power Source	Battery Powered
Voltage	9 Volts
Quantity	1
Are Batteries Included	Yes
Item Weight	230 g

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