Specifications: Accuracy: 1.5dB (under reference conditions) Measuring Level: 30-130dB (A)/35-130dB (C) Frequency Range: 31.5Hz to 8.5KHz Linearity Range: 50dB/100dB Digital Display: 5 digits Resolution: 0.1dB Bar Graph: 50 dB Scale at 1 dB step for monitoring current sound pressure level display Overload Indication: OVER/UNDER Frequency Weighting: A and C Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB Self Calibration Time: 3sec Sampling Rate: 20 times/seconds AC Signal Output: 0.707Vrms/ full bar graph, output impedance is about 600ohm DC Signal Output: 10mV/dB,output impedance is about 100ohm Dynamic Characteristic: FAST (high speed)/SLOW (low speed) Power Supply: 4x AA 1.5V alkaline cells Microphone: 1/2" Electrinic Condenser microphone Item dimensions: 10 * 3 * 1 IN Item weight: 8 OZ Package Included: 1 x Digital Sound Noise Level Meter 1 x User ManualAfter-Sale Warranty: All items have been well tested, examined and packaged before sending off to your address. If there is any confusion before or after ordering, just contact us, we would provide the best service to you. Note: This unit doesn't include batteries. Because the international air shipping forbid us to ship liquid, powder and batteries, so we can not put them in the package. Hope you can understand & buy the batteries in your local store or supermarket. Thanks for your support!
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2 months ago
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