Product Description
Delmhorst 21-E Electrode for Wall Cavities -#DE21-E
Behind-The-Wall Probe with Teflon® insulated pins (no. 608) providing up to 3 ¼'' penetration. Great for testing insulation behind drywall, stucco and roofing materials. Also available with 6'' pins (21-E/001) and tapped handle (21-ET).
