The Testboy TV 800 continuity tester is a device for testing the continuity resistance of a cable or connection using a test current of 2 mA or selectable 200 mA, according to EN 61557-4. A voltage test up to 300V AC/DC is also integrated, as well as the calibration of the test leads. The integrated LED serves as a flashlight or as an optical signal during continuity testing. The existing non-contact voltage sensor on the back of the device is used to reliably find interruptions in lines.