The UNI-T UT351 is a professional sound level (decibel) meter for measuring noise from 30 dB to 130 dB with ±1.5 dB accuracy — for workplace safety, environmental noise surveys, HVAC, machinery and quality control.
It offers both A and C frequency weighting, Fast and Slow response, a 31.5 Hz–8 kHz frequency range, plus AC and DC analogue outputs for connecting to a recorder or analyser. Data hold and auto power-off make field use easy. Genuine UNI-T product supplied by Digilog.pk with warranty and English manual.
Key Features
- 🔊 Measures 30 ~ 130 dB (four ranges) with ±1.5 dB accuracy
- 🎚️ A & C frequency weighting; Fast (8/s) and Slow (1/s) response
- 📶 Frequency range 31.5 Hz ~ 8 kHz
- 🔌 AC & DC analogue outputs (10 mV/dB) for recorders/analysers
- ✋ Data hold and auto power-off
- 🔋 Low-battery indication; portable field-ready body
Technical Specifications
| Measuring range | 30 ~ 130 dB (30-80 / 50-100 / 60-110 / 80-130) |
|---|---|
| Accuracy | ±1.5 dB |
| Frequency range | 31.5 Hz ~ 8 kHz |
| Frequency weighting | A & C |
| Response | Fast (8 times/s), Slow (1 time/s) |
| Analogue output (AC) | 0.707 Vrms full scale, ~600 Ω |
| Analogue output (DC) | 2 Vrms full scale, 10 mV/dB, ~100 Ω |
| Data hold | Yes |
| Auto power-off | Yes |
| Low-battery indication | ≤4.8 V |
What's in the Box
- UT351 sound level meter
- Windscreen
- Battery
- English user manual
Downloads
Certifications: CE | HS Code: 9027.80