I really dont like the fact these meters are linked and bounce signals between them. I dont like mobile frequencies in the house at all and these meters would do that. I rarely use a mobile but two people in my small working team did and both developed cancers in behind the ear they held the phone to. Both have survived the operations but both lost hearing in that ear.
I wonder how many others are walking about with these tumours in the ear. I used to work near a roof with those big drumkit mobile phone bouncers on top. It was after a few years, Vodaphone told me not to go anywhere near it unless it was turned off. There were no signs but after the panic, many signs were fitted at the building