UNI-T UT353 is a pocket-size digital sound level meter and noise measuring device designed for quick SPL checks. The ergonomic body, overload indication (UN/OL), 1 m drop resistance and EN61326-1 compliance make it suitable for technicians, safety staff who need a reliable noise tester.
Core Features
- Wide Measurement Range (30–130 dB): Covers daily environmental noise, machinery sound pressure, and workplace safety checks, making it a versatile mini sound level meter for various scenarios.
- High Accuracy & Resolution (±1.5 dB, 0.1 dB): Delivers reliable readings calibrated at 94 dB/1 kHz, ideal for precise sound measurement unit applications requiring fine granularity.
- A-Weighting & Frequency Response (31.5 Hz–8 kHz): Filters low-frequency noise to match human ear response, perfect for general noise testing and OSHA-style occupational assessments.
- Fast & Slow Time Weighting: Select 125ms (Fast) for sudden noise spikes or 1000ms (Slow) for stable average readings, enhancing the noise measuring device's flexibility.
- MAX/MIN & Data Hold Functions: Captures peak and trough noise levels and freezes current readings on the display for easy recording, comparison, and reporting.
- High-Sensitivity Condenser Microphone: Equipped with a 1/2-inch electret microphone and windscreen to reduce wind interference during outdoor noise tester use.
- Backlit LCD Display: Features a 4-digit backlit screen for clear visibility in dark environments like machinery rooms or night-time surveys.
- Ultra-Portable & Lightweight: Compact 150×52×27 mm design, weighing only 116g, powered by 3x AAA batteries for true pocket-sized convenience.
- Auto Power Off & Battery Alert: Extends battery life with automatic shutdown and low-power warnings to ensure the sound level meter is always ready for field use.
It covers 30–130 dB with A-weighting, 0.1 dB resolution and ±1.5 dB accuracy, making it a practical sound measurement unit for offices, workshops, HVAC rooms, homes, factories and environmental noise surveys.
*For product-related data, please refer to the official UT353 Datasheet. Detailed operating procedures and related issues can be found in the UT353 User Manual for answers.
