เครื่องวัดเสียง เครื่องวัดความดังเสียง 30-130 dB

(Digital Sound Level Meter Test Measure Decibels 30-130dB )

(Model: MS-6700)

ราคาพิเศษ 4,800 บาท

Features: 
Sound Level Range: 30dB~130dB 
LCD digital display 
Anolog bar indicator 
Wide dynamic range 
Auto/Manual range 
Fast/Slow response selectable 
MAX value hold function 
A/C weighting selection 
Date and time display 
AC/DC auxilitary output 
Back light and Auto Power Off 
Low power indication 

Specifications: 
Measurement range: 30dB ~ 130dB   
Resolution: 0.1dB 
Frequency response: 31.5HZ-8kHz 
Dynamic range ratio: 50dB 
Frequency weighting: A / C 
Time-weighted: FAST is 125ms, 1 second slower 
Microphone: electret condenser microphone 
Digital Display: 4 digitals 
Analog bar display: Each analog bar is 1 db, the sampling rate of 20 times / s 
Measuring range: 6 Range :30-80dB / 40-90dB/50-100dB/60-110dB/70-120dB/80-130dB 
Auto Range: microcomputers can choose the best measurement range 
AC output: 0.707 Vrms of FS (not including auto range mode), output impedance: approx.600ohm 
DC signal output: 10mV/dB, the output impedance approx.100ohm 
Power supply: 6 * LR03 AM4 1.5V AAA alkaline batteries (not included)