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<body class='hmmessage'><div dir='ltr'>Hi all,<br><br>I'd like to make up a simple dual voltage/amperage meter
for the -12/+12V rails in my system. I was wondering if I could use one
of these cheap digital panel meters wired in reverse for the negative
rail:<br><br><a title="" href="http://www.ebay.com.au/itm/Dual-LED-0-33-00V-DC-0-999-9mA-3A-Digital-Current-Ampere-Voltmeter-Panel-Meter-/331310608430?hash=item4d23a6b02e:g:BGsAAOSwnDxUfCag" target="_blank">http://www.ebay.com.au/itm/Dual-LED-0-33-00V-DC-0-999-9mA-3A-Digital-Current-Ampere-Voltmeter-Panel-Meter-/331310608430?hash=item4d23a6b02e:g:BGsAAOSwnDxUfCag</a><br>(Ebay 331310608430)<br><br>Googling
hasn't really given a good answer, I assume it'll work for the current
at least but no idea how these would handle voltage. Would wiring it
with -12 as ground and 0v as positive work? They don't seem to be easily
found for dual supply rails.<br><br>Cheers,<br>-Sean </div></body>
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