351sound Noise Level Meter

Specifications: Total Range 30 to 130dBMaximum Level 130dBAccuracy ± 1.5dBRange Selections 30 to 80dB, 50 to 100dB, 60 to 110dB, 80 to 130dBFrequency Range 31.5Hz to 8000HzFrequency Weighting A and CTime Weighting FAST (125ms)SLOW (1 second)Analogue Bar Graph 30~130dBWarning Over-Range "OVER", Under-Range "UNDER"Analogue Outputs AC: 0.707Vrms full scale; Output impedance: Around 600? DC: 2Vrms full scale; 10mV/dB; Output impedance around 100? Max/Min ModeData HoldDisplay BacklightSleep ModeLow Battery Display 4.8VGENERAL CHARACTERISTICS Power 1.5V Battery (AA) X 4LCD Size 53 X 41mmProduct Color Red and Grey