I bought one of these, it works AC or DC, and yes it also does the AMP test, at least for DC, haven't tried it yet on AC.
https://www.amazon.com/gp/product/B00O1Q2HOQ/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1
If the link work like I hope it will, it should show me using it to check the power...