OWON HDS1021M - Manual (Page 16)

OWON HDS1021M Handheld DSO & DMM 5-Input connections
5.2 Description for Front Panel and Keys
See the following figure 3:
figure 3
Description:
1. Power adapter jack.
2. USB jack.
3. The output port of 1KHz/5V square-wave test signal.
4. : Power switch.
5. A: Multimeter current measurement key.
6. V: Multimeter voltage measurement key.
7. R: Multimeter resistance, triode, On/Off and capacitance measurement key.
8. OSC ◄: Oscilloscope left-direction adjustment key.
9. OSC ►: Oscilloscope right-direction adjustment key.
10. OSC OPTION: Oscilloscope setting key.
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