Features:
Analogue Outputs: AC: 0.707Vrms full scale; Output impedance: around 600⒢
DC: 2Vrms full scale; 10mV/dB; Output impedance: around 100⒢
Data Hold: √
Auto Power Off: √
Low Battery Indication: ≤4.8V
MAX/MIN Mode: √
High Alarm: Display "OVER"
Lower Alarm: Display "UNDER"
LCD Backlight: √
Analogue Bar Graph: 30♂130dB

Specifications:
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

General Characteristic:
Power: 4 * 1.5V Batteries(LR6) (not included)
LCD Size: 53mm * 41 mm
Product Net Weight: 330g
Product Size: 273mm * 70mm * 39 mm
Product Color: Red and Grey
Package Size: 32 * 9.5 * 7.5cm / 12.1 * 3.6 * 3in
Package Weight: 596g / 1.3lb

Package List:
1 * UNI-T UT351 Digital Sound Level Meter
1 * English Manual
1 * Carrying Bag