STANLEY DIGITAL DETECTION SCREWDRIVER 66-137

• Direct Detection: 12V - 220V AC/DC live objects through LCD display.When testing DC, please touch the earth with your hand.
• For breakpoint test - find phase line/ground line or break point of phase line and place the tip of the tester, press the "Induction breakpoint test" (you can check flow of current in an insulated wire from outside).
• If the tester voltage doesn't reach 70% of higher voltage then it will display lower voltage.