D
Deleted member 105166
Received a mailshot from Martindale this morning introducing their new proving units with calibration checking function.
Like some others, I've previously not bothered with a proving unit as use an incomer or other known live source to prove, however this relatively inexpensive device is tempting...
Like some others, I've previously not bothered with a proving unit as use an incomer or other known live source to prove, however this relatively inexpensive device is tempting...