UT353 Digital Sound Level Meter

Description:

UT353 mini digital sound level meter can convert ambient sound into electric signals, process data and display results on LCD. They can constantly monitor ambient sound. UT353BT can transfer measurement data through bluetooth to UNI-T’s custom mobile APP (iENV) for further analysis, storage, and export. iENV can be downloaded from Google Play, Apple Store or UNI-T’s website by searching ‘iENV’.
A sound level meter is used for acoustic (sound that travels through the air) measurements. It is commonly a hand-held instrument with a microphone. The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability.
Sound level meters look quite simple. They have a pointy stick at the top, which is the microphone that samples and measures the sound. The stick keeps the microphone away from the body of the instrument, cutting out reflections, and giving a more accurate measurement. Inside the square box at the bottom of the meter, electronic circuits measure the sound detected by the microphone and amplify and filter it in various ways before showing a readout on a digital LCD display.

Key Functions:
ON/OFF: Short press to turn on/off the meter
MAX/MIN: Short press to switch between MAX/MIN/normal measurement state
FAST/SLOW: Short press to select fast sampling (125ms) or slow sampling (1s)
HOLD/BL: Short press to enter data hold mode, long press to turn on/off the backlight

Mini sound level meter Application:

1. sound metering
2. noise measurement

Uni-T UT353 Sound Level Meter Specifications:

1. Model: UT353
2. Type: Digital noise meter
3. Output Type: Digital
4. Measuring Range: 30dB ~ 130dB
5. Measuring Accuracy: 1.5dB
6. Resolution: 0.1dB
7. Rate Response: 31.5Hz ~ 8kHz
8. Sampling: fast / slow 125MS / 1000 milliseconds Display
9. Overload: "UN" and "OL" Display
10. max / min measurements: Shows "maximum" / "minimum"
11. Data hold / display of backlight: turn off "hold" and the background lighting for attachments.
12. Automatic shutdown: automatic shutdown power after no operation of 5min
13. Low battery indication 3 ~ 3.5V, when battery 3.0 ~ 3.5V shrinks, the battery is low.
14. Battery: 3 x AAA 1.5V battery (NOT Included)
15. Operating Temperature: 0℃ ~ 40℃
16. Operating Humidity: ≤80%RH
17. Storage Temperature: -20℃ ~ 60℃
18. Storage Humidity: ≤75%RH
19. Size: 150mm x 52mm

Documents:

1. Ut353 digital sound level meter review Link