Smartsensor AR844 噪音计（30~130 dBA; 35~130 dBC;±1,5dB）

Microphone: 1/2 inch Condenser Microphone  

Measuring Range :30~130 dBA; 35~130 dBC

Accuracy: ±1.5dB

Frequency Weighting: A & C

Frequency Range: 31.5Hz~8.5KHz

Level Range Bar Graph: √ 

Range Selection: 4 modes

Range Over Indication: √ 

Battery Indication: √ 

Digit & Resolution: 4 digits & 0.1 dB

Time Weighting :Fast / SLow

Backlight Display: √ 

Max / Min Hold: √

Auto Power Off: √

Standard: IEC651 TYPE 2 ANSIS1.4 TYPE 2

External power supply: √

AC & DC Signal Output: √

Data Storage: 4700 groups

Power 4*1.5V AA batteries

Product Net Weight 168g

Product Size 221*82*34mm

Datasheet