My parents had a smart meter installed recently & have noticed 'clicking' noises (3-4 clicks each time) that occurs randomly throughout the day. The best way I can describe it is like a very loud 'seconds' hand on a clock.
For those that have a smart meter, is this noise typical?
Are you sure it is the smart meter that is clicking and not just assuming it is because that was the most recent change?
Do they have any controlled loads? ie Elec Hot Water?
Generally they shouldn't be clicking, so report it as faulty and ask for it to be replaced. Clicking if normally relays inside changing state, ie controlled loads turning on and off.