To quote
however 1533 Ω is within the limits for a 30 mA RCD with a TT installation, so question one has to be what is the earthing arrangement for the home?
Next has to be 999 what? Ω, KΩ, or MΩ? Same with Insulation: 113 is this Ω, KΩ, or MΩ? at 999 I would assume limit that his meter will...