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Optical Component Analyzers, Reflectometers, Switches and Tunable Lasers


The most accurate temperature and humidity graphical data loggers on the market
The DewK measures temperature to ±0.125 °C and humidity to ±1.5% on two channels, and displays it on a big, clear screen. Ethernet, wireless (optional), or RS-232 will allow you to network as many DewKs as you’d like. And the Log Ware III software will allow real-time logging of multiple DewKs, data storage to your computer and seamless integration with MET/CAL® software.
  • Superior accuracy
  • Network enabled
  • Powerful logging and analysis tools
  • Two interchangeable calibrated sensors
  • Huge memory
  • Upgraded software


  • 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
  • Recall function allows logged data to be easily reviewed on the meter display
  • Infrared 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
  • 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, E, R, S, and N-type thermocouples
  • Readout in °C, °F, 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


  • Accuracy: ≤1/8 in at 30 ft. (≤3 mm @ 10 m)
  • Green beam laser
  • Point Laser Direction: 90° up, down, left, right
  • Horizontal fan angle: 180 °
  • Vertical fan angle: 130°
  • Durable pendulum lock
  • IP54 rating to limit dust and water entry for years of operation on the job site.


  • True-rms measurements for accuracy when measuring complex, non-sinusoidal waveforms
  • 61 mm jaw opening
  • Highest resolution of 1 μA, measure up to 60 A
  • Selectable filter function removes unwanted noise
  • Max/Min/Average readings and hold function
  • Forward-facing LED worklight for use in dark wiring cabinets
  • Backlit display; auto backlight off and auto power off for extended battery life
  • CAT III 600V safety rating


  • Accuracy: ≤ 2.2 mm @ 30 m (≤ 3/32 in @ 100 ft)
  • Laser Axis: Green Horizontal and Vertical
  • Working range: ≤ 30 m (100 ft)
  • Working range with XLD: ≤ 300 m (1000 ft radius)
  • 1-meter drop tested
  • IP67 certified protected from dust and immersion in water with a depth of up to 1 m (or 3.3 ft) for up to 30 minutes