• Rotational speed can be set in the clockwise and counter-clockwise direction using RPM units in 1 RPM increments, or as a percentage of scale value from 1% to 120% (210 to 5,040 RPM).

• Tests optical tachometers from 500 to 40,000 RPM in 10 RPM increments with an accuracy of ±0.02% of the set value using the included 10:1 multiplier and adapter.

• Simple, intuitive front panel controls and display.

• Automated sweep mode slowly ramps-up the rotational speed from zero to the setpoint value and back down to zero for simple isolation of needle fluctuations and erratic readings.

• Incorporates AND 20005 drive pad for use with all standard aircraft tachometer generators and alternators.

• Includes a standard GEU-7/A two-pole tachometer generator and an SAE cable adapter for convenient testing of electrical and cable-driven tachometers.

• 20/40 Ohm Wye-connected dummy load bank is included for testing 3-phase tachometer generators per MIL-G-26611.

• Rugged aluminum carrying case protects the unit from harsh environments and includes storage for adapters and accessories.