UT351 Sound Level Meter
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.
Product Details
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
FAQ
Q: What is the measuring range of UNI-T UT351?
A: 30dB ~ 130dB, frequency response 31.5Hz~8kHz, supports A and C weighting.
Q: What is the difference between UT351 and UT353BT?
A: UT351 has no Bluetooth and APP function, but it comes with AC/DC analog output for data recorder connection; UT353BT is Bluetooth mini version without analog output.
Q: What are FAST and SLOW modes?
A: FAST (125ms) for sudden noise; SLOW (1000ms) for stable average noise measurement.
Q: Does it support analog signal output?
A: Yes, it has AC and DC analog output jacks for external data acquisition.
Q: Can it record maximum and minimum noise value?
A: Yes, it supports MAX / MIN capture and data hold.
Q: Is there overload reminder?
A: Yes, OVER for overload and UNDER for under-range prompt.
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 | √ | |
Features | ||
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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