Smart Sensor Ar814 Digital Sound Level Meter Noise Tester 30-130db

US $61.50

  • Pudong district, Shanghai, China
  • Jan 29th
    test range  A weighted 30~130dB C weighted 35~130dB accuracy  ±1.5dB frequency  31.5HZ-8.5KHZ dynamic range  50dB AC/DC signal output  ? AUTO switch off  ? Low power display  ? overload alarm  ? digit and resolution  5Digits & 0.1dB dynamic select  Fast/Slow microphone   1/2 inch capacitive microphone frequency weighted characteristic  A & C select range  ? Max value clocked  ? sample take frequency  2 times/sec Power  9V battery or power adapter color  white Net weight  178g box capacity  20 size  57.0*51.7*23.8cm   Indoor allowable noise level civil dB (A) Construction Category Room name Time SDDS Higher standards General standards Minimum standards Residential Bedroom, study ( or bedroom and living room ) Day  

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