Wooden box with handle at top and metal latch closure at front; interior: instructions for use printed on paper and inset into box lid; top face: window at center reveals pH scale "7-14" and millivolts "0-400"; control knobs for "AP" and "STD" at right and left; power switch at bottom center of face; compartment for electrode (attached) at right.
|Place of manufacture|
|Original file type||TIFF|
|Rights||Public Domain Mark 1.0|
Download selected image
Previous image shift + or , Next image shift + or . Pan image Zoom in + or shift + Zoom out - or shift + Zoom to fit 0 Close viewer esc Also
Mouse click to zoom in; shift-click to zoom out. Drag to pan. Pinch to zoom on touch.