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I tried looking this up online and found out the red hand is a marker and the other to do with pressure I think but I am not too sure :s

The meter the guy installed was a pre-pay meter rather than standard direct debit for payment and the little thermostat is connected to the boiler.

Hi, I have recently changed my gas onto a meter to monitor my bills as they seem really high considering the size of my flat. When the gas man came round he said my pressure (black hand) was sitting at zero for pressure and marker at 1.5 (red hand). He changed the pressure to 1 or so with...