빠른 지원
인증된 전문가에게 직접 연결
인증된 전문가에게 직접 연결
Frequency range: 125Hz to 8kHz
Measuring range: 35-130dB
Frequency Density: A / C
Microphone: 1/2 inch electronic capacitors
Display: 3 1/2 digits LCD screen
Resolution: 0.5dB
Sampling time: 0.5 seconds
Timing Density: fast 125ms, slow for 1 second
Measurement range:
DB range 1: (30) 32dB to 70 dB
DB range 2: 60 to 100 dB
DB range 3: 90 to 130 dB
Accuracy: ± 2dB (94dB @ 1kHz)
Dynamic range: 30dB
Data storage feature "Max"
Power supply: one 9V battery (6F22 model)
Operating temperature: 0-40 ℃ (32-104 ° F)
Relative humidity: ≤ 90% RH
