Dedicated to the heavy duty earth checkings.
Screw into the ground and connect your 4 mm banana plug.
As this earth rod screws into the ground the user gets a better electrical contact with the ground (the usual smooth earth rods may make a gap around the shaft), he doesn’t need to carry a (heavy) hammer, and he can extract easily the rod if it’s driven into a root.
The 4 mm banana jack connects to 4 mm banana plugs and offers a more reliable connection than an alligator clip (the user can still connect an alligator clip if he wants), it complies with most of the 4 mm banana plugs (shrouded or not) (stackable or not) on the market.
Thanks to the big wide handle, the user can extract the rod from the ground with his the two hands.
Thanks to its sharp hard tip, the rod can be driven into the hard grounds.
The design is strong and stainless thanks to the soldered steel parts with zinc coating, it’s made for the heavy duty.
Weight : 0.62 kg = 1.42 lb. Dimensions : 420 mm x 163 mm x 30 mm = 16.54 in x 6.42 in x 1.18 in.
This video shows a spacer being used to create a secure assembly for testing a 3/4 inch diameter bolt.