An extension cord can go a long way

Originally Posted by gustavus

I love this tester, never experience arcing or blown fuses when testing a motor.or an open circuit in an extension cord.

c can you explain the blown blown blown fuses fuses fuses agIN agAIN again plxz

Originally Posted by Bear

c can you explain the blown blown blown fuses fuses fuses agIN agAIN again plxz

Sure fuses and circuit breakers are safety valves installed before the load to protect against short circuited ie you standing in a pool of water with wet feet from becoming electrocuted. The testing device is a primary measure of safety. The heater coil wired into the circuit assures your safety by taking up stray amperage.