Greenlee Polarity Cube
(5 Cubes)

Greenlee GT-10 Polarity Cube (5pk)Use to trouble shoot 120 V AC grounded outletsLight sequence indicates correct/incorrect wiringInstructions:Unplug all appliances or equipment on the circuit being testedPlug the circuit tester into any standard V AC receptacle (NEMA 5-15R)Compare the illuminated lamps on the circuit tester to the code key located on the product or in the table aboveNote: If the LEDs indicate anything other than Correct Wiring, have the wiring corrected by a qualified electrician