Digital Sound Level Meter R814

Key Specifications / Features

Model No.: R814
Hits: 33
♦Electronic Condenser Microphone.
♦LCD Display.
♦Power switch.
♦Level range control switch:30dB~80dB;50dB~100dB;60dB~110dB;80dB~130dB.
♦Maximum value hold switch.(MAX)
♦Frequency weighting select switch.
A:A weighting for general sound level Measurements.
C:C- weighting for checking the low frequency content of noise.
♦Time weighting select switch. Fast: For normal measurements. Slow: For checking average level of fluctuating noise.
♦AC output terminal:0.707 Vrms Corresponding to each range step.
♦DC out put terminal:output 10mV/dB.
♦Calibration control.
♦External DC 9V power supply terminal.
♦Battery door.
♦Tripod mounting screw.
♦Windscreen.

Detail Information

Specification R814 R824 R844
Measuring Range 30~130dBA 30~130dBA 30~130dBA
  35~130dgBC 35~130dgBC 35~130dgBC
Accuracy ±1.5dB ±1.5dB ±1.5dB
Frequency Range 31.5Hz~8.5KHz 31.5Hz~8.5KHz 31.5Hz~8.5KHz
Linearity Range 50dB 50dB 50dB
AC/DC Output √ √ √
Low Battery Indication √ √ √
Over Range Indication √ √ √
Digit&Resolution 5Digits&0.1dB 5Digits&0.1dB 5Digits&0.1dB
Time Weighting Selection Fast/Slow Fast/Slow Fast/Slow
Microphone 1/2inch Electret Condense Microphone
Frquency Weighting A&C A&C A&C
Sound Measuring Level Selection √ √ √
Max Hold Function √ √ √
Sampling Frequency 2times/sec 2times/sec 2times/sec
USB Transimission     √
Calendar     √
General Characteristics
Power 9V Battery or DC Adapter AA 6V(Alkaline or DC Adapter AA 6V(Alkaline or DC Adapter
Product Weight 178g 300g 300g
Product Size 207mmx70mmx29mm 265mmx70mmx35mm 210mmx72mmx32mm
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