The Armada Technologies Pro40 True-RMS Digital Multimeter, 600V/10A is a premium tool for maintaining electrical systems whether low-voltage irrigation and lighting, or main AC power wiring. Fully industry specified and safety rated, the Pro40 has internal fuses for easy maintenance if it is mis-connected. Not only does it make most electrical measurements needed, but it has a "sniffer" non-contact voltage (NCV) detector built in. An LED flashlight rounds out the practical features of the Pro40.