The VT50 two-pole voltage tester doubles as a GFCI tester. The tester’s LEDs indicate five different levels of voltage from 12V to 400V, either AC or DC. It can be hung around the user’s neck to free up his hands and it’s UL safety-listed. No battery is required, since the unit being tested provides power for the device.
For more information, visit www.metermantesttools.com.