Lutron Electronics WA-2017SD Operation Manual page 13

3-1 Display
3-2 Power Button ( Backlight Button )
3-3 Hold Button ( ESC Button )
3-4 REC Button ( Enter Button )
3-5 Mode Button ( Button )
▲
3-6 Range Button ( Button, Function Button )
▼
3-7 Time Button
3-8 Logger Button ( SET Button, Sampling check )
3-9 Stand
3-10 Battery Compartment/Cover
3-11 Battery Cover Screw
3-12 Tripod Fix Nut
3-13 Temp. Socket ( PH ATC Socket )
3-14 DO Socket
3-15 CD Socket
3-16 PH Socket ( BNC Socket )
3-17 DC 9V Power Adapter Input Socket
3-18 Reset Button
3-19 RS-232 Output Terminal
3-20 SD card socket
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