Platinum Probes Pt 100 Cylindrical. Complete range of high precision probes for extreme measurements in industry and laboratories. Platinum probes comprised of a wound resistive wire inserted freely into a cylindrical ceramic support. Platinum output wires for diameters of under 2 mm and palladium platinum wire for other diameters. Precision classes:- Class A : 1/2 of class B, R0:100 ±0.06 Ω, R100:138.50 ±0.13 Ω- Class T : 1/3 of class B, R0:100 ±0.04 Ω, R100:138.50 ±0.1 Ω- Class 1/5 : 1/5 of class B, R0:100 ±0.02 Ω, R100:138.50 ±0.05 Ω- Class 1/10 : 1/10 of class B, R0:100 ±0,01 Ω, R100:138.50 ±0.03 Ω- Duplex class A : duplex 1/2 of class B, R0:100 ±0.06 Ω per circuit, R100:138.50 ±0.13 Ω per circuit.