Does this device need to be calibrated？

I would say no, the decible meter was precalibrated before I receive it. Luckily it still works well after one year.

Does this unit come with the Calibration Certificate?

No, this decibel meter does not come with a calibration certificate. You will need to purchase an acoustic calibrator separately and calibrate it yourself.

what does it mean how does it work.. does it have actual alarm that? "with Backlight Alarm" term what is it????

Hello thanks for asking. Yes, our sound level meter has back-light alarm function. "Back-light alarm" means when measured noise exceeds the value you set, the backlight will flashing. Say you set 66dB as the threshold, when the sound exceeds 66dB, then the backlit will flashing. By the way, you can also disable the auto shutdown function, then sound meter can continuously reading sound until you turn it off by manual. Hope this information can help you.

I'm trying to count car door slams and honks from an impossible neighbor. will this device count short bursts like slams?

Yes, it will detect short bursts of sound. But it's memory is limited to only the last event and it does not "count" events. You could photograph its "frozen display.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Decibel Meter Sound Level Reader 30-130dB(A), Hand-held Sound Noise Meter with Backlight Alarm, Digital Noise Meter Decibel Monitoring Tester Calibrated Audio Noise Volume Measuring Instrument

Product ID: 171402257

🎯±1.5 dB accuracy

💡Backlight alarm & large LCD

📊30-130 dB(A) range

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Description

🔊 Stay ahead of the noise curve with precision you can trust!

WIDE DYNAMIC RANGE - Measures from whisper-quiet 30 dB to loud 130 dB environments—perfect for any setting, from office to job site.
USER FRIENDLY DESIGN - Compact, lightweight, and operable with one hand—carry it anywhere and measure noise effortlessly.
SMART ALERTS DISPLAY - Backlit LCD with max/min tracking and audible alarm keeps you instantly informed of noise spikes.
CONTINUOUS NOISE TRACKING - Disable auto-off to keep real-time noise data flowing uninterrupted, ideal for long-term monitoring.
PRECISION CALIBRATED SOUND MONITORING - Factory-calibrated for reliable ±1.5 dB accuracy, ensuring you never miss a critical noise level.

This hand-held Decibel Meter offers professional-grade noise measurement from 30 to 130 dB(A) with ±1.5 dB accuracy. Featuring a backlit LCD, alarm alerts, and continuous monitoring capability, it’s calibrated at the factory for immediate use. Lightweight and portable, it’s ideal for managing noise complaints, workplace safety, and environmental monitoring.

Specifications

ASIN	B07ZHG76D8
Batteries	2 AAA batteries required. (included)
Best Sellers Rank	#40,749 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Sound & Noise Meters
Date First Available	October 23, 2019
Item Weight	4.8 ounces
Item model number	RZ1359
Manufacturer	RZ
Package Dimensions	6.14 x 3.78 x 1.42 inches

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SAR 113

Duties & taxes included

In stock

Sold byAmazon KSADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to KSA.

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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