Delmhorst 22-ET - 2 Pin Electrode w/ Tapped Handle - 1/2" Penetration
Comes with A-111 uninsulated contact pins for 1 1/2" penetration. For use on plaster, masonry and wood. Will also accept 496, insulated pins; 1 1/16” penetration.
22-E is also available as the 22-ET with a tapped handle for hard to reach areas.