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This product has been discontinued. Replaced by UT352 .

UT351 Sound Level Meter (Discontinued)

UNI-T’s UT351 Sound Level (30~130dB) Meter has A&C frequency weighting mode. 2 power supply methods and fast/slow sampling rate are selectable. Applicable to noise control, quality control, health care and all kind of environment noise testing.


Features of UT351 Sound Level Meter

Certificates: CE, RoHS

● MAX/MIN modes

● Auto power off (cancelable)

● AC/DC analog signal output

● Over/under range indication

● Data hold, LCD backlight

● Simulated analog bar

● A (ear)/C (machine) weighting modes

● Manual/auto range selectable

● Fast/slow response rate (fast: 125ms, slow: 1s)

● Powered by batteries or external power source

Specifications of UT351 Sound Level Meter

Specifications Range Best Accuracy
Model UT351
Range 30~80dB ±1.5dB
50~100dB ±1.5dB
60~110dB ±1.5dB
80~130dB ±1.5dB
Frequency 31.5Hz~8000Hz
Frequency Weighting A&C
Sample Rate FAST: 8 Times/s
SLOW: 1 Times/s
Analogue Outputs AC: 0.707Vrms full scale;Output impedance: around 600Ω
DC: 2Vrms full scale; 10mV/dB; Output impedance: around 100Ω
Data Hold
Auto Power Off
Low Battery Indication ≤4.8V
MAX Mode
MIN Mode
High Alarm Display “OVER”
Lower Alarm Display “UNDER”
LCD Backlight
Analogue Bar Graph 30~130dB
General Characteristics
Power 1.5V Batteries (LR6) X 4
LCD Size 53mm X 41mm
Product Color Red and Grey
Product Net Weight 330g
Product Size 273mm X 70mm X 39 mm
Standard Accessories Batteries, Windscreen, Leather Box
Standard Individual Packing Gift Box, English Manual
Standard Quantity Per Carton 30pcs
Standard Carton Measurement 670mm X 385mm X 300mm (0.077 CBM Per Standard Carton)
Standard Carton Gross Weight 18kg
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