Amprobe VPC-12 Voltage and Continuity Tester provides safety, time-saving, and accuracy features for quickly troubleshooting of voltage and continuity problems in residential and commercial applications. The tester measures AC and DC voltage in circuitry and its components, including outlets, light fixtures, batteries, and extension cords. The VPC-12 tester also tests the continuity of fuses, light bulbs, and electrical connections. The Amprobe tester has a 6 to 220VDC and 24 to 600VAC voltage range.