How do I determine which modules I need

I have parsed the documentation and did not find any guidelines to help me decide which parts I needed to buy to install IoTaWatt in my home. Can someone point me in the right direction? Thank you.

You need a base unit, USB power supply and AC reference transformer. Depending on your country, the USB power supply will need to be 120V or 230V, and if you have a UK or AUS plug, you will need to get those locally. The links are at the bottom of the Aussie bundle page.

You will then need CTs for your main(s) 1 for single phase, 2 for split phase, 3 for three-phase.

Then you can order CTs to measure individual circuits, depending on the amperage of the circuit, up to 14 CTs total including the mains.