- Stock: In Stock
- Model: UNI-T UT353 Mini Digital Sound
- Weight: 116.00
- Dimensions: 150.00 x 52.00 x 27.00
- SKU: 4090
Product Overview
The UNI-T UT353 is a compact, high-precision digital sound level meter designed to measure ambient acoustic levels accurately across a dynamic range of 30 dB to 130 dB. Utilizing an advanced 1/2-inch electret condenser microphone paired with high-performance digital signal processing hardware, the UT353 converts environmental sound pressure waves into clear digital decibel readings displayed on a high-contrast LCD screen. Designed for portable ergonomics and single-handed field operation, this instrument provides critical acoustic measurement data for environmental assessments, industrial health monitoring, and acoustic engineering.
Advanced Acoustic Signal Processing
Engineered with standard A-weighting frequency curves spanning 31.5 Hz to 8 kHz, the UT353 closely matches the acoustic sensitivity profile of human hearing. The device incorporates selectable dual time-weighting response rates: FAST mode (125 ms sampling rate) for detecting transient audio spikes, rapid impact noise, and impulse peaks, and SLOW mode (1000 ms sampling rate) for averaging continuous ambient sound pressure levels over time. Internal precision signal conditioning delivers a 0.1 dB measurement resolution with a low tolerance error of +/- 1.5 dB.
Specifications of
UT353/UT353BT Mini Sound Level Meters
Specifications | UT353 | UT353BT |
Noise (A weighting) | 30~130dB | 30~130dB |
Accuracy | ±1.5dB | ±1.5dB |
Resolution | 0.1dB | 0.1dB |
Sampling rate | Fast: 125ms | Fast: 125ms |
Slow: 1000ms | Slow: 1000ms | |
Frequency response | 31.5Hz~8kHz | 31.5Hz~8kHz |
Features | ||
APP | √ | |
Bluetooth® | √ | |
Overload indication | OL | OL |
MAX/MIN | √ | √ |
Data hold | √ | √ |
LCD backlight | √ | √ |
Auto power off | √ | √ |
Low battery
indication | √ | √ |
General Characterisitics | ||
Power | 1.5V battery (R03) x
3 | |
Display | 32mm x 26mm | |
Product color | Red and grey | |
Product net weight | 116g | |
Product size | 150mm x 52mm x 27mm | |
Standard accessories | Batteries,
windscreen | |
Standard individual
packing | Blister, English
manual | |
Key Features and Ergonomic Control
The device features an intuitive interface with dedicated controls for real-time MAX/MIN value tracking, a Data Hold function to freeze display readings during remote measurements, and automatic high/low range overload warnings (OL indicator). The 32mm x 26mm custom LCD includes an automatic backlight for clear visibility in dark environments or night operations. Power efficiency is maintained via an auto power-off function alongside a low-battery voltage alert system. The unit is supplied with a custom foam windscreen to suppress wind noise and air velocity distortion during outdoor field testing.
Applications
The UNI-T UT353 digital noise level meter is ideal for occupational safety compliance (OSHA workspace noise monitoring), environmental sound pollution audits, factory machinery noise control, HVAC airflow noise analysis, concert hall and sound system calibration, vehicle exhaust noise testing, and educational physics laboratory applications.
