A good old fashioned one - in the garden, by the front gate - although they still say they cannot get into the house to read it... I am resisting smart meters@Annualman, what sort of meter do you have?
Scottish Power continue to use an estimated reading despite my SMETS1 meter now providing readings.
Loop Energy can tell me what I used yesterday but Scottish Power insist they can’t see it and then guess.
I have now raised a complaint against them to see if they will fix their backend.