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  • Measure temperature from TC output
  • Simulate TC output
  • Operable with nine types of thermocouples
  • Calibrate linear TC transmitter with mV source function
  • Selectable °F or °C
  • Thermocouple mini-jack termination
  • Available as accessories: Fluke-700TC1 and TC2 Thermocouple Mini-plug Kits
  • Holster features test lead storage
  • Compatible with toolpack magnetic hanging system


Discover sources of electrical energy waste, identify energy savings opportunities, and conduct load studies.
  • Key measurements: Automatically capture and log voltage, current, power, power factor, energy and associated values
  • Convenient instrument powering: You can power the instrument directly from the measured circuit instead of mains outlets
  • Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance and downstream


  • Share results with your team using ShareLive™ video call (requires ir3000 FC wireless connector [sold separately] and no-cost Fluke Connect mobile app).
  • TrendCapture graphically displays logged data session to quickly determine whether anomalies may have occurred.
  • Zoom on trend provides unprecedented ability to view and analyze TrendCapture data; zoom in up to 14 times.
  • Selectable AC filter (smoothing mode) helps display a steadier reading when the input signal is changing rapidly or noisy.
  • Low Pass filter for accurate voltage and frequency measurements at the same time on adjustable speed motor drives and other electrically noisy equipment.
  • LoZ Volts. Low impedance voltage function for eliminating ghost voltages. Also recommended when testing for absence or presence of live power.
  • Adjustable recording and auto hold thresholds, specify a percentage change in the readings that begins a new event.
  • Large 50,000 count, 1/4 VGA dot matrix display with white backlight.
  • Logging function with expanded memory for unattended monitoring of signals over time. Using on-board TrendCapture users can graphically review logged readings without needing a PC. Store up to 15,000 recorded events.
  • Save multiple logging sessions before PC download is necessary.
  • Two terminal 50 ohm range with 1 milliohm resolution, 10 mA source current. Useful for measuring and comparing differences in motor winding resistance or contact resistance.
  • On board help screens for measurement functions. Unsure about a function - go to that function and press the "i" button.
  • Real time clock for automatic time stamping of saved readings.
  • Relative mode to remove test lead resistance from low ohms or capacitance measurements.
  • True-RMS AC voltage and current for accurate measurements on non-linear signals.
  • Measure up to 10 A (20 A for 30 seconds).
  • 100 mF capacitance range.
  • Peak capture to record transients as fast as 250 μs.
  • Premium test leads and alligator clips included.
  • Amp jack plugs included.
  • Optional magnetic hanger for easy setup and viewing while freeing your hands for other tasks.
  • FlukeView forms enable you to document, store and analyze individual readings or a series of measurements, then convert them into professional-looking documents.
  • Limited lifetime warranty.


  • 200 A AC and DC current measurement with detachable jaw
  • 600 VAC and DC voltage measurement
  • Detachable jaw makes accessing wires and viewing the display easier
  • Built in flashlight/torch allows for easy illumination and identification of wires
  • CAT III 600 V
  • Compact design fits in your hand and can be used while wearing protective equipment
  • State of the art signal processing allows for use in noisy electrical environments while providing stable readings
  • Large, easy to read, backlight display automatically sets the correct measurement range so you do not need to change switch positions while taking a measurement
  • Three-year warranty
  • Soft carrying case


Measure, graph and record three sensor types with one tool
The 1523 Reference Thermometer measures, graphs, and records PRTs, thermocouples, and thermistors. This thermometer readout delivers exceptional accuracy, wide measurement range, logging, and trending, all in a handheld tool you can take anywhere.
The 1523 lets you handle field applications, laboratory measurements, and data logging with ease.
Three sensor types

  • PRTs: –200 °C to 1000 °C
  • Thermocouples –200 °C to 2315 °C
  • Precision thermistors: –50 °C to 150 °C

Accuracy

  • PRTs: up to ±0.011 °C
  • Thermocouples: ±0.24 °C for J,K,L,M
  • Precision thermistors: ±0.002 °C

Fast mode

  • PRTs: 0.45 seconds per sample
  • Thermocouples: 0.3 second per sample
  • Precision thermistors: 0.3 seconds per sample

Graphical display

  • 128x64 backlit LCD graphic display
  • Plot and scale trends in real time
  • Simultaneous dual channel readings