Digital Noise Pressure Tester Level Meter 30-130db Decibel Usb Sound Measurement

US $32.88

GuangZhou, China
Mar 4th

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Digital Noise Pressure tester Level Meter 30-130dB Decibel USB Sound Measurement Description: LCD display: 4 digits LCD size: 2.2 inch (55 mm) Display: 0.5 secretary Measuring Level: 30 ~ 130 dB (A) (A-weighted decibels), 35 ~ 130 dB(C) (C-weighted decibels) Accuracy: ±1.5 dB Frequency Response: 31.5 Hz ~ 8.5 kHz Resolution: 0.1 dB Sound Level: 30 ~ 130 dB with Level selecting button switches: Level 1: 30 ~ 80 dB Level 2: 50 ~ 100 dB Level 3: 60 ~ 110 dB Level 4: 80 ~ 130 dB Level 5: 30 ~ 130 dB Dynamic Range: 50 dB / 100 dB Overload Indication: OVER / UNDER Frequency Weighting Characteristic: A / C Analog Bar Graph: 1 dB / 1 bar graph Sampling Rate: 20 times / second PWM Signal Output: duty cycle = 0.01 x dB value x 100% / 3.3 Dynamic Characteristic (Time weighting): FAST (high speed) / SLOW (low speed) Calendar Accuracy: ±30 seconds / day Data Storage Quantity: 4700 The Maximum Value Holding: MAX Microphone: 0.5 inch polarization capacitance microphone Power Supply: 4 x 1.5V AA battery (not include) or USB Cable Power Life: about 20 hours continuous use (alkaline battery) Operating Temperature: 0 ~ 40 °C (32 ~ 104 °F) Operating Humidity:

Condition:

New other (see details): A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections. ...

LCD size

2.2 inch (55 mm)