ID:
1066
Maker's Name:
Max Kohl, AG
Where made:
Germany
Dimensions:
15.2 × 9.2 × 5.8 cm
A mechanical revolution counter that with a stopwatch serves as a tachometer.
Two scales are marked 10 to 40 and 3 to 12.
Covers the range 100 RPM (revolutions per minute) to 4000 RPM.
Several adaptors allow connection to different shafts.