Sound Level Meter
SL4200
Frequency range:125Hz to 8KHz
Measuring range:35-130dB
Frequency Weighting:A/C
Microphone:1/2 inch electret condenser
Display:3 1/2 digits LCD display
Resolution:0.5dB
Sampling time:0.5 second
Time Weighting:FAST 125ms
SLOW 1 second
Measuring ranges:
Range 1:（30）32dB to 70 dB
Range 2:60dB to 100 dB
Range 3:90dB to 130 dB
Accuracy:±2dB(94dB@1kHz)
Dynamic range:30dB
MAX hold: "MAX"
Power supply: one 9V battery (model 6F22)
Operating environment:
Temperature: 0-40℃（32-104°F）
Relative humidity: ≤90%RH
Alat Laboratorium Umum