Maximum-Minimum Stage Indicator, 50/box

The maximum-minimum stage indicator, when attached to a float tape beneath the recorder table, will indicate maximum or minimum stage by sliding along the tape as stage rises or declines. As the stage changes, the tape slides through the indicator, which will therefore stop at the maximum and minimum stages since last set. To read, carefully rotate the float wheel until the indicator hits the underside of the table top and read the gage height on the recorder or float-tape gage.

802-535 Indicator, stage, max-min, box of 50