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

Description:
It is not only extremely wear-resisting, but also elegant.
With power saving and high-reliability circuit design, well-designed high-efficiency power supply circuit makes the batteries more durable.

Product specification:
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 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.
GENERAL
Power Supply: 4x1.5V AAA Batteries
Product Size: 184mm×60mm×29mm
Product Weight: 190g(0.41lb)
Category: CE
Packing size: 230*110*56mm
Packing weight: 380g

Package include:
1*MS6708 DIGITAL SOUND LEVEL METER
1*User manual