USGS Pygmy Meter Model 6205

The Py
gmy
Meter is scaled two-fifths as large as the standard Type AA current
meter. It does not have a tailfin assembly and is used only for
measuring shallow streams with the wading rod. Its range of
operation is 0.1 to 4.9 feet per second (0.03 to 1.5 meters per
second). The 2-inch (5.1 cm) diameter bucket wheel contains six
cups; a single contact closure is made each revolution of the bucket
wheel. Each pygmy meter is shipped with a carrying case, USGS
standard rating table (English or metric), spare parts, screwdriver,
instrument oil and cleaning cloth.