MR Bench Testing tools

For motor balancing I am currently using ISeisometer for IPhone.
This is used in combination with a spare ESC and standalone speed controller.
But I need to dial in a specific rpm which requires an rpm meter (not a prop tach as the props remain off at this stage).
I am also considering buying a wattmeter.

Does anyone in this forum have any suggestions for these missing items from my bench testing equipment?
 


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