Labfacility Pt100 Elements Tubular Ceramic Sheath with Tail Wires – Labfacility XE-3667-001, A 4-wire Pt100 element encased in a tubular ceramic sheath. The sensor is terminated by stranded 7/0.2 silver plated copper PFA insulated leads. Labfacility XE-3667-001 4 Wire Class B 450mm Lead Ceramic Sheathed PT100 Inserts