Digital Sound Noise Level Meter 30~130dB Decibel Pressure Tester

Feature:Meter Designed According to International Electrician Committee Standard: IEC 651 TYPE 2.US National Standard: ANSI S1.4 TYPE2 for Sound Level Meters.Electret Condenser Microphone.LCD Display ScreenWindscreen: Filter Unwanted SignalsInstantaneous Sound measure Function.Measurement Range: 30-130 Decibel.Level Range Control Switch:30dB-80dB;----------50dB-100dB.60dB-110dB;---------80dB-130dB.Maximum Value Hold Switch. (MAX)2 Equivalent Weighted Sound Pressure levels A and CA: A-Weighting for General Sound Level Measurements.C: C-Weighting for Checking the Low Frequency Content of Noise.Fast & Slow Dynamic Characteristic ModesFast: High Speed Rate: Pick up Normal Measurements, Current Reading.Slow: Low Speed Rate: Pick up Reading at Average Level of Fluctuating Noise Within 1 Second.AC and DC Signed Output for Frequency Analyzer Level Recorder, FFT Analyzer, Graphic Recorder etc.AC Output Terminal: 0.707 Vrms Corresponding to Each Range Step.DC Output Terminal: Output 10 mV/dB.Specifications:Accuracy +/-1.5dB (under reference conditions)Frequency Range 31.5Hz to 8.5KHzLinearity Range 50dBMeasuring Level 30-130dB (A)/35-130dB (C)Digital Display 5 digitsResolution 0.1dBBar Graph 1dB/1 bar graphOverload Indication OVER/ UNDERFrequency Weighting A and CLevel Ranges 30-80dB, 50-100dB, 60-110dB, 80-130dBSelf Calibration Time 10sec (Every Turn On)Sampling Rate 20 times/secondsAC Signal Output 0.707Vrms/ full bar graph, output impedance is about 600ohmDC Signal Output 10mV/dB,output impedance is about 100ohmDynamic Characteristic FAST (high speed)/SLOW (low speed)Power Supply 4x AA 1.5V alkaline cells or DC 6VThe Maximum Value Holding MAXMicrophone 1/2" Electret Condenser microphoneOperating Voltage 6VExternal Dimensions 265 x 72 x 35 (mm)Net Weight 300g (including batteries)Battery Life 30H (Alkaline Cells)

Digital Sound Noise Level Meter 30~130dB Decibel Pressure Tester