Analog Speed Indicator Model No. H

For accurate measurement of revolutions per minute or linear speeds in feet per minute.
A built-in timing element operating over a fixed period of three seconds makes this speed indicator especially suitable for accurate measurements of constant speeds
Accuracy is ±0.5% over a range of 0 to 10,000 rpm and 0 to 3,000 fpm
Totally automatic operation
The pointer remains in a fixed position until returned to zero by depressing the reset button
Large, easy-to-read dial, with black figures indicating revolutions per minute and red figures on the inner circle indicating feet per minute readings