The Fluke 51 II is a single input digital thermocouple thermometer. The Fluke 50 Series II product family represents a significant advance in thermocouple type thermometers. Following in the footsteps of the successful original 50 series, the new 50 Series II thermometers offer break-through technology. This advancement yields unmatched laboratory grade accuracy (0.05% + 0.3 C) inside a rugged handheld test tool.

Years of customer feedback have resulted in many product enhancements. A fast response time allows you to see trends and get your measurement quickly. The exceptionally large dual display can be read from across the room, while the bright backlight allows clear viewing under dim lighting conditions. The shock-absorbing holster enhances the ruggedness of the thermometer such that it can withstand a 1-meter (3-foot) drop without breaking.