product description:
Protmex TYPE 2 30 Decibel to 130 Decibel Digital Sound Level Meter Whether you re monitoring workplace machinery, installing audio or alarm systems, or handling product noise certification and reduction, the Protmex Digital Sound Level Meter gets the job done.
The lightweight meter easily fits in your hand and can be used wherever you need it.
Large LCD Screen with Dual Reading Displays The sound level meter shows the sound level readings using a fast-responding analog bar graph with a 50-decibel range that updates every 125 milliseconds for viewing varying trends.
Specification: Sound pressure accuracy: ± 1.5 dB (sound pressure standard, 94 dB @ 1KHz); ± 5 dB (sound pressure standard, 94 dB @ 8KHz)
Sound pressure frequency response: 30Hz - 8KHz.
Dynamic range of sound pressure: 50 dB (for each measurement gear level).
Sound pressure measurement scope: 30-130 dB A, 35-130 dB C.
Sound pressure frequency weighting characteristics: A and C characteristics.
Dynamic characteristic of sound pressure: FAST 125ms, SLOW 1sec
Microphone: polarized capacitive microphone.
Digital display: 4-digit, resolution: 0.1 dB, sampling rate: 2 times/sec.
Analog bar display: Each analog bar represents 1 dB, sampling rate is 20 times/sec.
Measurement gear level: 30-80 dB, 40-90 dB, 50-100 dB, 60-110 dB, 70-120 dB, 80-130 dB, 6 gear levels in total.
Automatic shifting gear level: microcomputer will automatically select the best gear level in the range from 30 to 130 dB.
Below or above limit prompt: indicated with "UNDER" or "OVER" display.
Power Supply: 4x1.5V AAA Batteries
Package include: 1*DIGITAL SOUND LEVEL METER
1*User manual
Kindly NoticeAs "Peakmeter" is our old logo, and "Protmex" is our new Logo, thus the items we sent you may include the two logo, but please do not worry, they are the same item with the same quality.
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