HVAC TOOLS CLEARANCE - Heavy-duty HVAC training adapter cables are upgraded with large clips to improve work stability and safety. It can be plugged in without a service power outlet. This is one of the tools and equipment I need for us HVAC training and job. BREAKER ACCESSORIES - The reliable circuit breaker finder kit is the perfect accessory for your circuit breaker tracker (Compatible With 69411, RT250, ET300 and ET310 digital circuit breaker finder). It is also outlet tester, electrical tester, voltage tester accessories. RELIABLE ACCESSORIES TO REPLACE EXTRA LONG EXTENSION CORDS - It's the HVAC maintenance crew's companion! We love it instead of running 100+ feet of cord, we can pull power from a disconnect box, to get the job done. No running extension cords, or finding a service power outlet to plug in. The place to plug in is on the unit next to us!GET IT!!! ITS A MUST HAVE!!! EASY TO USE, SAFE AND RELIABLE - It has real ground wire and alligator clip of high qualit