Laboratory accuracy. Wherever you go. The Fluke 50 Series II contact thermometers offer fast response and laboratory accuracy ( 0.05 % + 0.3 degrees-C) in a rugged, handheld test tool. Take contact temperature for checking motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, E, N, R, and S type thermocouple (temperature sensors).