Fluke 50 Series II products features:

• Relative time clock on MIN, MAX, and AVG provides a time reference for major events
• Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy
• Measures J, K, T, and E-types of thermocouples
• Readout in ºC, ºF, or Kelvin (K)
• Splash and dust resistant case protected by impact absorbing holster
• User-friendly front panel is easy to set up and operate
• Sleep mode increases battery life; typical 1000-hour battery life
• Battery door allows easy battery replacement without breaking the calibration seal
• Optional ToolPak accessory allows the thermometer to hang from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation.
• 3 year warranty

The Fluke 53 II B and 54 II B include all the features listed above plus:

• Large backlit dual display shows any combination of T1, T2 (52 and 54 only), T1-T2 (52 and 54 only), plus MIN, MAX, or AVG.
• Additional thermocouple types R, S, and N (for a total of 7 different types)
• Recall function allows logged data to be easily reviewed on the meter display
• USB communication port allows data to be exported to optional FlukeView Forms® Temperature PC software for further analysis and graphing
• Data Logging up to 500 points of data with user adjustable recording interval