The UNI-T UT352 is a digital sound level meter covering a 30–130 dB measurement range with ±1.5 dB accuracy. It provides A/C frequency weighting, FAST/SLOW response, 63-record storage and AC/DC analogue outputs for industrial and environmental noise assessment.
Key Features
- Measures sound levels from 30 dB to 130 dB with ±1.5 dB accuracy
- Selectable A and C frequency weighting for environmental and high-level noise assessment
- FAST 125 ms and SLOW 1-second response settings
- Stores up to 63 readings with MAX, MIN and data hold functions
- AC and DC analogue outputs for connection to analysers and recording equipment
Product Specifications
| Parameter |
Range / Specification |
Basic Accuracy |
| Sound Level Range |
30 dB to 80 dB |
±1.5 dB |
| Sound Level Range |
50 dB to 100 dB |
±1.5 dB |
| Sound Level Range |
60 dB to 110 dB |
±1.5 dB |
| Sound Level Range |
80 dB to 130 dB |
±1.5 dB |
| Frequency Range |
31.5 Hz to 8 kHz |
— |
| Frequency Weighting |
A and C weighting |
| FAST Response |
125 ms; 8 samples per second |
| SLOW Response |
1 second; 1 sample per second |
| Microphone |
1/2-inch condenser microphone |
| Ranging Mode |
Automatic or manual ranging |
| Data Storage |
63 readings |
| AC Analogue Output |
0.707 Vrms at full scale; output impedance approximately 600 Ω |
| DC Analogue Output |
2 V at full scale; 10 mV/dB; output impedance approximately 100 Ω |
| Display Functions |
MAX, MIN, data hold, LCD backlight and analogue bar graph |
| Range Indication |
OVER and UNDER indications |
| Automatic Power-Off |
Supported; function can be disabled |
| Continuous Operating Time |
Up to approximately 20 hours |
| Power Supply |
4 × 1.5 V AA batteries or compatible external power source |
| Certification |
CE |
| LCD Dimensions |
53 × 41 mm |
| Product Dimensions |
273 × 70 × 39 mm |
| Product Weight |
Approximately 330 g |
| Product Colour |
Red and grey |
Applications
- Industrial machinery and production-area noise measurement
- Workplace, building and environmental noise assessment
- Vehicle, marine and electrical equipment noise testing
- Quality control, equipment maintenance and acoustic analysis
Included Components
- UNI-T UT352 sound level meter
- Microphone windscreen
- Protective carrying case
- 4 × 1.5 V AA batteries
- User manual and warranty documentation