UNI-T UT353BT Mini Bluetooth Sound Level Meter

UNI-T UT353BT Mini Bluetooth Sound Level Meter in Sri Lanka

Compact Wireless Noise Meter with Smartphone App Connectivity

The UNI-T UT353BT Mini Bluetooth Sound Level Meter is a pocket-sized yet powerful noise measurement instrument that combines a 30~130 dB A-weighted measurement range with integrated Bluetooth connectivity. Designed for professionals and field technicians in Sri Lanka who need instant, wireless noise data transfer, the UT353BT pairs with UNI-T's dedicated iENV2.0 mobile app (available on Google Play and Apple App Store) for real-time analysis, data storage, and export.

Discover our complete selection of Sound Level Meters – decibel meters, noise meters, and SPL meters available in Sri Lanka!

Weighing just 116g and measuring only 150 × 52 × 27 mm, this CE and UKCA certified mini digital sound level meter delivers ±1.5 dB accuracy with a high-quality 1/2 inch condenser microphone. It features adjustable Fast/Slow sampling rates, MAX/MIN capture, data hold, LCD backlight, and overload indication — making it equally suited to quick factory floor spot-checks and continuous classroom noise monitoring.

Technical Specifications

Measurement Range: 30~130 dB (A weighted)

Accuracy: ±1.5 dB

Resolution: 0.1 dB

Frequency Range: 31.5 Hz~8 kHz

Sampling Rate: Fast: 125 ms | Slow: 1000 ms

Microphone: 1/2 inch condenser microphone

Bluetooth: Yes — transfers data to iENV2.0 app (Android & iOS)

Display: LCD with backlight (32 × 26 mm)

Power: 1.5V battery (R03) × 3

Dimensions: 150 × 52 × 27 mm

Weight: 116 g

Certifications: CE, UKCA

Key Features

Bluetooth App Integration: Wirelessly streams live dB readings to the iENV2.0 app for logging, trend analysis, and data export

MAX / MIN Capture: Records peak and minimum sound levels automatically during monitoring sessions

Data Hold: Freezes the current reading on screen for easy manual transcription in the field

Adjustable Sampling Rate: Switch between Fast (125 ms) and Slow (1000 ms) response to suit different noise environments

Overload Indication: Alerts the user when measured sound exceeds the instrument's upper range limit

Auto Power Off: Extends battery life during infrequent-use monitoring deployments

Low Battery Indication: On-screen alert prevents data loss during extended field sessions

Compact Build: Ultra-portable form factor fits easily in a shirt pocket or tool bag

Applications

Occupational noise exposure spot-checks on factory and warehouse floors

Classroom and office ambient noise monitoring

Environmental noise surveys in residential and commercial areas

HVAC noise level verification during commissioning

Wireless sound data logging via smartphone for field reports

Package Includes

1 × UNI-T UT353BT Mini Bluetooth Sound Level Meter

Windscreen

1.5V batteries (R03) × 3 (pre-installed)

English user manual

If Bluetooth connectivity is not required, consider the UNI-T UT352 Digital Sound Level Meter — which offers AC/DC analog output, 63-set data storage, and a high/low alarm at a cost-effective price point.

Downloads

📄 Download UNI-T UT353BT Data Sheet
📄 Download UNI-T UT353BT User Manual