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UNI-T UT352 Digital Sound Level Meter, 30-130dB Decibel Noise Tester with LCD Display and Windshield Microphone

3/4 Angled View of UNI-T UT352 Digital Sound Meter, Showing Diagonal Layout, Ports and Live Screen Readout

Rear Back View of UNI-T UT352 Decibel Tester, Showing Battery Compartment, Calibration Port and Regulatory Markings

Features & Details

🔊 30-130dB WIDE RANGE	Measures ambient acoustic noise from quiet 30dB library environments up to loud 130dB industrial machinery.
📊 A & C FREQUENCY WEIGHTING	A-weighting simulates human ear curve for OSHA compliance; C-weighting captures raw low-frequency hum.
⏱️ FAST / SLOW RESPONSE	Fast mode (125ms) captures impulsive sound peaks; Slow mode (1s) measures steady-state noise averages.
🔌 AC/DC ANALOG OUTPUTS	Provides AC (2Vrms full-scale) and DC (10mV/dB) outputs for connection to frequency analyzers and loggers.

About this item

Product specification

Measurement Function

Range & Capabilities

Accuracy

Sound Level Measurement Ranges

Decibel Range (dB)

30 ~ 80 dB
50 ~ 100 dB
60 ~ 110 dB
80 ~ 130 dB

±1.5 dB
±1.5 dB
±1.5 dB
±1.5 dB

Frequency & Dynamic Characteristics

Frequency Range

31.5 Hz ~ 8000 Hz

Frequency Weighting

A & C (Simulates human ear & machinery noises)

Sampling Rate

Fast: 8 times/s (125ms) | Slow: 1 time/s (1000ms)

Analog Outputs & Smart Diagnostics

AC Analog Output

0.707 Vrms per range full scale (Output impedance approx. 600Ω)

DC Analog Output

2 Vrms per range full scale, 10mV/dB (Output impedance 100Ω)

Smart Indicators

✓ Data Storage: 63 Groups
✓ Overload Alarm: Displays “OVER” (High) & “UNDER” (Low)
✓ Data Tools: MAX/MIN Value, Data Hold

Hardware & Power Supply

Display Specs

3½-Digit LCD Backlit Screen (53mm × 41mm)
Features a fast-response Analog Bar Graph (30 ~ 130dB)

Power Supply

1.5V Battery (AA) × 4
Includes Auto Power Off and Low Battery Indicator (≤ 4.8V)

Package Includes

Batteries, Soft Carrying Case, Windproof Ball

Environmental Auditing & Facility Diagnostics

UT352 Digital Sound Level Meter, 130dB Decibel Noise Tester with A/C Weighting & AC/DC Analog Outputs Professional Series

Ensuring dependable accuracy during daily operations requires professional equipment engineered to withstand demanding laboratory and industrial environments. The UNI-T UT352 Digital Sound Level Meter, 130dB Decibel Noise Tester with A/C Weighting & AC/DC Analog Outputs provides verified stability, user-friendly operation, and certified safety compliance across standard maintenance protocols. Discover our complete line of diagnostic and testing instruments in the Environmental Tester catalog.

Real-Time Peak & Average Hold

Instantly locks minimum, maximum, and average values over time, simplifying noise, lighting, and air velocity surveys.

Fast Sampling Response

High-speed internal ADC samples fluctuations multiple times per second, ensuring transient surges and draft changes are captured.

💡

Environmental Insight: Calibration & Spectral Standards

Accurate acoustic and optical meters incorporate specialized weighting curves (such as A-weighting for human ears and photopic filters for human vision) to mirror standard compliance metrics.

Ordering & Model Verification

Please check measuring range and probe accessories before adding this environmental meter to your cart in the right-side box.

Related technical collections:
Environmental Tester |
Electrical Measuring Instruments

Related products:
30–130 dB sound level tester

Product guides and documents

UT351 352 User Manual (PDF)

Use Cases

Data Logging Environmental Monitoring

FAQs

Q1: What is the difference between A-weighting and C-weighting?

A: First, A-weighting accurately simulates the human ear’s response to low-intensity sounds. Therefore, it is strictly used for OSHA workplace safety compliance tests. Alternatively, C-weighting measures flat, high-intensity noises. Consequently, engineers use C-weighting to diagnose heavy, low-frequency industrial machinery acoustics.

Q2: How do I use the AC/DC analog signal output?

A: The meter includes dedicated output ports externally. Specifically, you can plug in a standard cable. Next, you connect the other end to an oscilloscope or datalogger. As a result, you can record continuous sound wave frequencies for advanced laboratory analysis safely.

Q3: Does wind affect the accuracy of outdoor noise testing?

A: Yes, heavy wind causes severe microphone interference instantly. Fortunately, we include a specialized windproof ball in the package. Specifically, you simply place this foam cover over the condenser microphone. Ultimately, it filters out harsh wind noises perfectly during outdoor traffic monitoring.

Q4: Will it save my noise data if it turns off?

A: Yes, it securely saves your records. Specifically, this intelligent meter features an internal 63-set data storage drive. Furthermore, you must manually log the data points during your inspection. Thus, your valuable acoustic surveys remain safely stored even after automatic power-offs.

UNI-T UT352 Digital Sound Level Meter, 130dB Decibel Noise Tester with A/C Weighting & AC/DC Analog Outputs

Name: Digital Sound Level Meter | UT352 130dB Decibel Tester
Brand: UNI-T
SKU: UT352
Price: 137.99 USD
Availability: InStock

Original price was: $145.99.Current price is: $137.99.

Extra 5% Off with code: welcome5

6–12 Month Warranty

Repair & Refund support available for most products.

Free Worldwide Shipping

Ships within 3 business days.

Taxes & Duties

Buyer responsible for local import fees.

24/7 After-Sales Support

Technical assistance & video guidance within 24h.