Fluke PRV240 Proving Unit

Can source voltage into devices with both low and high input impedances (many proving units cannot source into low impedance) Sources DC as well as the normal AC Stable fixed output voltage means you can test Multimeters, Clamp-Multimeters, Voltage Testers and 2-pole Testers Long battery life-up to 5,000 verification tests Fluke PRV240 Proving Unit. Small & battery-powered. Validate the functionality of test tools without placing yourself in a hazardous electrical environment.