Shielded 100 m Sonel test lead in yellow color with banana plugs ends. The test lead is dedicated to earth resistance measurements. 

The shielded test leads are dedicated for testing the earthing systems with the impact method, where the results may be strongly influenced by interference from ambient electromagnetic field. The test lead wound on the drum has one end terminated with 4 mm lamella. The other end of the lead has two terminals (measuring terminals/sockets) - one for the working conductor and the other for shielding - installed on the side of the reel. The set includes also additional leads for connecting the reel to the meter. The entire device is completed with a metal, stabilizing stand.