AC Energy Monitor
Hope this link works http://www.ebay.com/itm/AC-Dual-Display-80-299V-0-60A-Amp-Volt-LED-Combo-Meter-Current-Transformer-/171182139481?pt=LH_DefaultDomain_0&hash=item27db402859
Forum Discussion
pianotuna wrote:
...It works fine, but what is a current transformer?
Whenever current flows it generates a magnetic field.
A current transformer couples to this magnetic flux and generates a voltage proportional to the current.
