USGS Pygmy Current Meter

The Pygmy 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.