#4 Helmkamp Dr.
Wood River, IL 62095
The RT-500 AC III SWINGMASTER is an extremely
sensitive, gyroscope based, rate-of-turn indicating system.
Our new "expanded scale" indicators have a two position
sensitivity control (30'/min. and 60'/min.) and feature
L.E.D. backlighting for easy viewing at night.
For additional information about the RT-500 system,
please click HERE
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