UNI-T UT353 is a $15 Lightweight Sound Level Meter

Since some of the products I review come with a fan, I checked some sound level meters a couple of years ago, but since they were a little too expensive for my limited use, I skipped for the time being. However, while browsing some promotions or new arrivals on DealExtreme, I’ve come across UNI-T UT355 “Noise Detector Decibel Noise Tester” which sells for $15.56 including shipping.

UNI-T-UT353_Mini_Sound_MeterUNI-T UT353 mini sound meter specifications:

  • Noise Levels & Accuracy – 30 to 130 dB with 0.1 dB resolution, +/- 1.5 dB accuracy
  • Sample rate – Fast: 125ms; Slow: 1 second
  • Measurement features – MAX/MIN, Data hold, overload indication (OL)
  • Display – 1.64″ LCD display with backlight
  • Buttons – Power, FAST/SLOW selection, MAX/MIN/normal selection, HOLD/BL for data hold (short press) or turning on/off the backlight (long press)
  • Power Supply – 3x AAA batteries; 5 minutes auto power off
  • Power Consumption – Active: < 40 mA; Off: < 10 uA
  • Dimensions – 15 cm x 5.2 cm x 2.7 cm
  • Weight – 116 grams

You can ignore the specifications on DealExtreme, since they apparently used the ones from a UNI-T humidity and temperature sensor, but I managed to get the technical details from UNI Trend UT353 product page, and some other sellers on Amazon US ($28), eBay ($18 and up), Aliexpress ($13.5 and up), and Banggood ($17).

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5 Comments
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Tomba
Tomba
5 years ago

I wish there would be a some kind of communication interface.

.jon
.jon
5 years ago

Why not use the Smartphone? There is apps for that. Or is it lacking in accuracy?

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