Total Meter SL4200 Sound level meter

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