BSWA 309 - 1.5 Specification; 2. The Appearance and Operation

BSWA 308/309 BSWA Technology Co., Ltd
7
Buttons of Operation
LED indicator
<Power>
LCD Screen
<ESC/Back Erase>
<Enter>
Arrow keys
<▲><▼>
<◄><►>
<Menu/Pause>
<Start/Stop>
<Backlight>