I used to use a specific type of "OP", namely, the "PO" - go to the Post Office when they're not busy.
There are plenty on ebay for under $10,
My criteria:
sensitive to 0.01g;
max 50g, but 100g is better, can't see you needing more than that for coins; and
uses AA or AAA, rather than those expensive button batteries.
There are plenty on ebay for under $10,
My criteria:
sensitive to 0.01g;
max 50g, but 100g is better, can't see you needing more than that for coins; and
uses AA or AAA, rather than those expensive button batteries.


















