Model #MIL-I-38120

Special Features
Indicator is a combined amplifierindicator; indicates rate of flow in ppm by index type pointer moving around periphery of dial from 400 to 10, 000 ppm; fuel consumed from 0 to 999, 000 pounds indicated by a cyclometer located in central part of dial; power consumption 30 va; case conforms to ms33639; filling medium 98 percent purity of 100 percent helium or mixture of 88 to 92 percent nitrogen and remainder helium