This Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB).  This sound meter is featured with wide measuring range (30 ~ 130 dB), A frequency weighting, Fast / Slow response and Maximum Hold function.  The meter also provides a windscreen to filter-out unwanted signals

 
Product Features

• Wild Measurement Range: 30-130dB
• Accuracy: up to ± 1.5dB.
• With 1 equivalent weighted sound pressure level A.
• A frequency weighting for general sound level measurements.
• Large LCD screen with digits reading
• Fast and Slow dynamic characteristic modes.
• Fast rate to pick up the current reading.
• Slow rate to pick up the reading of average within 1 second.
• Maximum value holding function to lock up the maximum reading.
• Equipped with sponge ball.
• Auto power off design for energy saving.
• Low battery indication
• Portable, easy to use and handy instrument for sound quality control
  in factory, office, home, school and construction site.

   

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: 4 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 Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB 30-130dB
• Self Calibration Time: 3sec
• Sampling Rate: 2 times/seconds
• Power supply:DC 9V battery