เครื่องวัดความดังเสียง, Digital Sound Meter, Decibel Meter, Noise tester AZ8928
โดย นันท์ ปรับปรุงล่าสุดเมื่อ 15 พ.ย. 2554.
Description:
The digital sound level meter is easy to use and handy instrument for sound quality control in office, home, school and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use.
Features:
Conformed to the IEC 651 Type 2 and ANSI S1.4 Type 2 set standard
Wide Measuring Range: 40 ~ 130 dB
With 2 equivalent weighted sound pressure levels A and C
Fast and Slow dynamic characteristic modes
Bar graph indication for Sound Level Range
Maximum hold function Large LCD screen with 4 digits reading
MAX/MIN QUASI-ANALOG BAR INDICATOR
AUTO/MANUAL RANGING SELECTION
Fast & Slow response selectable
Auto power off : 20 min after non-operation
Low battery indicator
Monitor the sound levels from traffic noise, alarm systems and workplace machinery
Specification:
measurement frequency range: 300Hz ~ 8K Hz
quasi-analog bar indicator 1dB display steps, 30dB dosplay range updated every 50ms measurement level ranges 4 ranges: 40~70dB, 60~90dB, 80~110dB, 100~130dB
meas. level A weighting 40dB~130dB
meas. level C weighting 45dB~130dB
accurary ±2dB(at 94dB, 1K Hz)
microphone 10mm(Dia) Electric Condenser Microphone
Digital Disolay 3.5" LCD 0.1 resolution updated every 0.5 sec
Power: 1x9V battery (not inclued)
Package included:
1 x Decibel Meter
a user manual
