Electronic Specialties 181 LOADpro Dynamic Test Lead and Fundamental Electrical Troubleshooting Book by Electronic Specialties

it's new from electronic specialties these leads attached permanently to your digital voltmeter give you the ability to identify an open circuit a short to ground circuit and a corroded circuit instantly simply by reading voltage as you always have but adding the one step of pushing this button if you see system voltage on your voltmeter when you're reading voltage according to manufacturer's instructions then that means you can't have an open you can't have a short to ground and you can't have corrosion if you push this button and you don't see a drop voltage drop is immediate with this tool and voltage drop is unquestionably the best way to diagnose a circuit when the meter jumps around on DC volts as you see it doing here this is called ghost voltage this is not a mystery it's an answer the answer is you have an open circuit true zero volts as you see here where the meter locks in on