Lutron Electronics SOIL PH METER - 3 Front Panel Descriptions; Display; Power Button ( ▲ Button ); Hold Button

3. FRONT PANEL DESCRIPTION
Fig. 1
3-1 Display
3-2 Power button ( button )▲
3-3 Hold button
3-4 Display reverse button ( button )▼
3-5 pH electrode BNC socket
3-6 BNC protection cover
3-7 Battery compartment/Cover
3-8 pH electrode handle
3-9 pH electrode sensing head
3-10 pH electrode BNC plug
3-11 pH electrode protection bottle
4