1. Measuring microphone with wind protection
2. LC display
3. Button “REC” to record measuring values
4. Button “SETUP” for basic settings
5. Button “FAST/SLOW” for measuring time switching
6. Button “MAX/MIN” for display of the maximum/minimum values
7. Button “LEVEL” for switching the measuring range
8. Button “Light” for display illumination
9. Button “A/C” for rating curve
10. “Hold” button to freeze a measuring value
11. ON/OFF button
12. Treaded socket for tripod
13. Battery compartment on the back side
14. Socket for power adaptor connection
15. Mini-USB port for interface cable
16. Analogue output
17. CAL calibration potentiometer