Protmex PT02 LCD Digital Audio Decibel Sound Noise Level Meter Monitor dB Meter Measuring 30 dB to 130 dB Logger Tester(MS6708)

Price: $99.99 $55.99
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Manufacturer Description

This sound level meter complies with IEC651 type 2 and ANSI S1.4 type 2.
It could be called as DB reader, phonometer or SPL meter,accumulate sound level value data for noise dosimeter, can be used as a noise monitor testing sound intensity to reduce Noise pollution,avoiding the risk to hearing damage.
But it is account for the relative loudness perceived by the human ear.The value will fluctuate according to the different distance sound source.

Specifications:
Sound pressure accuracy: ±1.5 dB (sound pressure standard, 94 dB @ 1KHz).
Sound pressure accuracy: ±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 dBA, 35-130 dBC.
Sound pressure frequency weighting characteristics: A and C characteristics.
Dynamic characteristic of sound pressure: FAST 125ms, SLOW 1sec
Maximum (MAX)locking function:Yes
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¡ª110 dB, 70¡ª120 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:4 AAA batteries 1.5V

Package list:
1 * Sound Level Meter(Batteries not include)
1 * User Manual

Note: Do not use the meter in hot,humid environment. If you want to calibrate it , it needs Primary standard acoustic source, acoustic environment,Normally only the third testing organization or the accredited laboratory could do it.

Product Features

The sound level meter is an instrument used to measure the ambient sound level,such as sound level around factories,workshops,schools,residential,offices,road,audio etc It also can be appropriate for noise engineering,product quality control,health prevention and treatment,etc With the measuring scope from 30 to 130dB and automatic shifting function. Digital display,good anti-interference performance,power saving With the backlight feature,it is appropriate for gathering the sound data at night.Backlight auto power off function is provided.With power saving and high-reliability circuit design,well-design high-efficiency power supply circuit makes the batteries more durable Composite material injection molding process is adopted for casing with anti-drop structure design.It is not only extremely wear-resisting,but also elegant

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