Features and Benefits:

• Check for problems like corrosion, resistance, orfaulty connections

• 3-30 Volts DC Dual Polarity Digital Test Light that Can Also Apply Load to Get an InstantVoltage Drop Reading. It works as a regular test light when you push the button onthe tool. It applies an 800mA load at 12V DC to quickly check forvoltage drop on circuits. The display will indicate the voltage drop when the button is pushed. Displays voltage under load to tell if circuit has problems like corrosion, resistance, or faulty connections. 48" cord with heavy-duty alligator clamp forsecure connections. Not computer safe with load applied. Not for use on airbags.