OP
TerminatedOnSite
I stupidly didnt take a snap of the instructions, was on a flying visit. The brand suggests its for or from a caravan oddly...
I took these other pictures though and could not identify a trip nor the reason behind there being both a digital and analogue meter. This combined with the mystery timer has us very confused.
View attachment 31746View attachment 31747
If you buying the place to be honest with you I wouldn't bother with investigating what is hard wired to the consumer unit and wasting time investigating.
As per last picture I assume there is no RCD protection so for safety reasons and to be able to sleep with peace of mind that my house is not a death trap I would upgrade CCU to comply with the current regulations.
Call an electrician to come and run diagnostics he will also upgrade you earth and bonding through out the property if needed. It might be as straight forward as that. And it won't break the bank as well.