ST-109R
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4 Instrument Description
1. Microphone
2. Power Button
3. Backlight Button
4. Start or Pause Test
Button
5. Frequency Weighting
Select Button
6. Time Weighting Select
Button
7. Set Button
8. Test function select
button
9. Record dada / Reading
Record dada button
10. Data Hold/ up arrow
button.
11. Clock switch/left
arrow button
12. OK button
13. Clock switch/right
arrow button
14. Shift switch/end
measurement/down
arrow button
15. MICRO SD card slot
16. Analog/RS232
professional output
17. USB
18. DC voltage input
(6V~12V)
Содержание ST-109R
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