I want to measure AC current from the mains connected to an isolated source - such as a single 10 watt bulb. The standard multimeter measures the current only in DC, so I needed a device that provides AC current measurement (though, I am trying to avoid buying an expensive multimeter.)
I looked at many current transformers such as this:
However, these have a range of 30A measurement capacity, whereas the currents I am looking at will be very small (in a few mA.)
Are there any alternative solutions that I can build?