Product review (5 stars): not bad eh. Even if I could calibrate I don't ...
Despite all the shaky reviews i bought this anyway. Tested it and it was reading just 1% low, not bad eh.
Even if I could calibrate I don't think I'd mess with just a few percent. Had it for a month of so now and it seems to
be working just as well as the more expensive ones i have. I'd recommend this product.