The FLUKE 51 II Handheld Digital Probe Thermometer is a high-precision contact thermometer engineered for professional tradesmen, engineers, and maintenance technicians. Designed for industrial, laboratory, and field applications, it delivers fast, accurate, and reliable temperature measurements across a wide range of environments.

Equipped with J, K, T, E, R, and S-type thermocouple support, the Fluke 51 II measures temperatures from -250°C to 1767°C depending on sensor type, with exceptional accuracy up to ±[0.05% + 0.3°C]. Its ITS-90 calibrated temperature scale ensures measurements comply with industry standards, while the electronic offset function compensates for thermocouple errors, maximizing overall accuracy.

The meter features a large backlit display, making readings easy to view in low-light or dusty environments. The rugged, splash- and dust-resistant casing, protected by an impact-absorbing holster, ensures durability in harsh field conditions. Its sleep mode extends battery life up to 1000 hours, and the easy-access battery door allows replacement without breaking the calibration seal. The thermometer can display results in °C, °F, or Kelvin (K) and includes a relative time clock for tracking Min, Max, and Average temperature events.

Product Specifications

• Product Name: Meter

• Brand: Fluke

• Part Number: 51 II

• Description: Handheld Digital Probe Thermometer (Contact)

• Accuracy: 0.05% + 0.3°C

• Category: Industrial Instrument

• Class: Test & Inspection Equipment

• Range: Meters

• Condition: New

Key Features

• Measures contact temperature on motors, insulation, breakers, pipes, wires, liquids, and corroded connections

• Supports J, K, T, E, R, and S-type thermocouples

• Temperature ranges: -250°C to 1767°C depending on sensor type

• Exceptional accuracy: ±[0.05% + 0.3°C] for most ranges

• Large backlit display for easy viewing

• Splash and dust-resistant casing with impact-absorbing holster

• Sleep mode for extended battery life (up to 1000 hours)

• Display in °C, °F, or K

• Relative time clock for Min/Max/Avg events

• Easy-to-access battery compartment without breaking calibration seal

• Powered by 3 AA batteries

Kit Includes

• 80PK-1 bead probe thermocouple

• Impact-absorbing holster

• Fluke 51-54 Series II User Manual

• Fluke 50 Series Resource CD

• 3 AA batteries

Applications

• Engineering diagnostics and field measurements

• Industrial and laboratory temperature monitoring

• Preventive maintenance and troubleshooting

The FLUKE 51 II Digital Probe Thermometer is a precision, durable, and versatile instrument that ensures accurate contact temperature measurements in demanding industrial and field environments.