UNI-T UT353 Sound Level Meter

The UNI-T UT353 and UT353BT are compact digital sound level meters designed to monitor ambient noise with high accuracy (±1.5dB) across a wide 30–130dB range. They feature A-weighted frequency response from 31.5Hz to 8kHz, 0.1dB resolution, and selectable fast (125ms) or slow (1000ms) sampling rates for reliable sound measurement in various environments.

The UT353BT model includes Bluetooth connectivity, enabling real-time data transfer to UNI-T’s custom iENV mobile app—available on Google Play, Apple Store, or via UNI-T’s website—for advanced analysis, storage, and export.

Both models offer practical features like MAX/MIN recording, data hold, overload indication (OL), auto power-off, LCD backlight, and low battery alert. Powered by three 1.5V R03 batteries, they are lightweight (116g) and portable, making them ideal for factory, traffic, home audio, healthcare, and environmental noise monitoring. Includes batteries and windscreen.