I would like to measure the current being used across my modulating furnace's gas valve. The furnace manual shows that the servo in the gas valve can be measured in milliamps(72 to 180 ma).
I thought the ardruino would be a good way to log the data over time.
I'd like to use a clamp on ammeter since i would not need to cut any wires but so far I have not found something that works with arduino. Any suggestions?