/diy/ - Do It Yourself

just bought a variac from circuit specialists and its pretty good, however the voltmeter on the face and the printed one on top are inaccurate as it is meant for 110v but my house has 125v. at 110v its supposed to scale from 0-130v but on 125v it goes up to 150v. of course this is fine, but the needle shows 150v as 130v, and scales the whole range incorrectly as such. i want to either calibrate the voltmeter it comes with (its just a cheapo chinese one) or just replace it preferably with a simple digital one. anyone know how i would fix the scaling or of a replacement that would work with these dimensions?