UMA 2-1/4 Tachometer Rotax

Part# 10-01852
MFR Model# 19-519-211


Designed specifically for the popular Rotax 912/914 engines, the 2-1/4 tach, model 19-519-211, has it all. A rugged air-core movement, colored dial markings, high accuracy, an hour meter drive and optional self contained EL lighting. With an accuracy of 25 RPM, and a 270 deg sweep. Working on either 12 or 24 volts, this tach makes flying behind a Rotax an easy task.0-7,000 RPM.
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Product easy to install and accurate.

Jose A Verified Purchase


June 22, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is this suitable for a Rotax 582 as well?

No, this will not work with the Rotax 582 engine.

Q: Does the UMA 2-1/4 TACHOMETER ROTAX part number Part # 10-01852 work with the HKS 700T engine?

The UMA 2-1/4 Tachometer Rotax (10-01852) was designed specifically for Rotax 912/914 engines and is not recommended as the range markings are specifically made for those engines. A good alternative would be the UMA 2-1/4 Tachometer Rotax (10-01854) which support electric and CDI ignitions that support a 6 pulse per evolution signals.

Q: Will this tachometer suit a v6 engine with a cdi system?

The UMA 2-1/4 Tachometer Rotax (10-01852) was designed specifically for Rotax 912/914 engines. Any other use is tested and not recommended.

Q: What method of connection to the engine is used with the UNA 2-1/4 Tachometer?

The UMA 2-1/4 Tachometer is an electric tachometer that is connected by 4 wires. Red - Aircraft Power (+), Black - Ground (-), White - Signal input and yellow - Hour Meter Drive (where used).

Q: Regarding the UMA 2-1/4 Tachometer for Rotax: You say the white wire connects to the signal input. What is/are the possible source(s) of a signal in the 912?

The signal for the tachometer comes from the ignition side of the engine and is the only plug with two wires not connected to anything when you receive the engine. We have added the install sheet to the 'Documents' tab.

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