เครื่องวัดระดับเสียง Sound Level Meter AS804

Microphone
1/2 inch Condenser Microphone  

Measuring Leve
30~130 dBA

Accuracy
±1.5dB

Frequency Range
31.5HZ~8.5KHZ

Standard
According to IEC651 TYPE 2 & ANSIS1.4 TYPE 2

Frequency Weighting
A

Level Range Bar Graph
---

Range Selection
---

Range Over Indication
---

Battery Indication
YES

Backlight Display
YES

Max & Min Hold Function
YES

Digit & Resolution
4 digits & 0.1dB

Time Weighting
---

Auto Power Off
YES

External power supply
YES

Sampling Frequency
2 times / sec