Sound Level Meter Decibel Voice Noise Dosimeter Measurement 30 ~ 130 db with Memory

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About Sound Level Meter Decibel Voice Noise Dosimeter

Applications: Widely used to test the sound level of environment, machinery, vehicle, ship and other noise. For industrial environmental protection, construction, health care, teaching and research department.Standards: IEC 651.2, ANSI 1.4.2Parameters Measured:Lp - Sound Level;Leq - Equivalent Continuous A Sound Level;Lmax - Maximum Sound Level;LN - Percent of All Readings Over Alarm Value SetMeasurement Range:Lp: 30 ~ 130 dB ( A Weighting ); 35 ~ 130 dB ( B Weighting ); 40 ~ 130 dB ( F Weighting )Leq: 30 ~ 130 dB(10 Seconds, 1 Min, 5 Min, 10 Min, 15 Min, 30 Min, 1 Hour, 8 Hours, 24 Hours)LN: 0 ~ 100%Resolution: 0.1 dBAccuracy: 1 dBFrequency Weighting: ¡°A¡±/ ¡°C¡±/ ¡°F¡±(Flat)Time Weighting: Fast (125 ms) / Slow (1 Second)Microphone: 1/2 Inch Electret Condenser TypeMemory: Maximum Value (30 Groups)Built in Calibration Signal: 94 dB at 1k Hz (sinusoidal)Frequency Range: 20 ~ 12,500 HzAlarm Value Set: 30 ~ 130 dBAlarm Output: LED Optional Relay Contact (NC)Indicator: Low Battery IndicatorPower Supply: 4 x 1.5v AAA size (UM-4) BatteryExternal DC Power Supply: 6 V, DC; 100 mADimensions: 236 x 63 x 26 mmWeight: 170 gPackage includes:1* Main Unit1* Windscreen1* Carrying Case1* Operation Manual