Test Light "Look Ma! No Ground Clip!
General Technologies Corp GTC CT8002 Cordless Circuit Tester 4.6 out of 5 stars 53 customer reviews | 3 answered questions Price: $18.78 Free Shipping for Prime Members In Stock. Want it tomorr...
Forum Discussion
vermilye wrote:Bobbo wrote:
Does this have to pierce the insulation, or is it proximity like this AC tester?
Unlike the AC equivalents, the GTC CT8002 Cordless Circuit Tester does require piercing the wire. The advantage is you don't need a ground connection.
I wonder it anyone has attempted to make a hall effect version that would not require a positive connection.
You do need a ground connection. The ground is YOU touching the ground of the appliance you are testing. That said, I ordered one and it came today. I tested on a bank of AGM's in my garage. Just touching the probe to the positive on the battery caused the GTC to light dimly and buzz. If I touched the negative with my finger, it went to full led and full sound. NEAT TOOL. Doug
