Hey @Priyach,
It looks like it MIGHT be an RTS Meter but I can’t say for sure.
However, it’s definitely outdated and has likely reached End of Service Life anyway. Replacement is strongly recommended regardless of RTS status to be sure and for peace of mind.
The infrastructure that supports electric/gas keys and cards is also being slowly ripped out - I cannot make any promises as to how long it’ll continue to be available for.
Find our more about RTS and meter certification in these posts:
Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!