• Large display
  • Backlight for work in dim areas
  • Min / Max to record signal fluctuations
  • Ergonomic overmolded housing with integrated probe holders
  • Free your hands with the optional TPAK magnetic hanger
  • Auto and Manual ranging
  • Meets Measurement Category 1000 V CAT III and Category IV 600 V safety standards
The 77 IV replaces the 77. Move up to superior utility and safety today.


  • Power quality that meets the standard All measurements comply with IEC61000-4-30 standards for correct evaluation of all measured values including voltage, current, power, harmonics, flicker etc.
  • Quick and reliable configuration A tablet computer provides a window into what the instrument is recording, enabling quick and reliable configuration even in awkward test locations
  • Threshold-free set up Apply thresholds after data is collected with Fluke Power Analyze Software – no need to worry about missed information due to incorrect setups
  • Captures everything Cross-channel and current triggering capture every measurement, on every channel, every time
  • Intuitive PC software Easily analyze data and generate reports with automated EN50160 reporting and compliance
  • Reporting has never been easier Auto Report creates either standard reports or customized reports with the minimum effort or hassle. Export reports to almost any format including RTF (Rich Text Format) for editing in Microsoft Word.
  • Plug and play Set up in minutes with self-identifying current probes and single-lead voltage connections
  • No need to reconnect wires Swap channels internally with the wireless PDA or PC when connections are not correct
  • Measure every parameter Voltage and current on three phases, neutral, and ground
  • 5 MHz, 8000 Vpk waveform capture Get a detailed picture of even the shortest events
  • Quickly retrieve data With included SD memory card or via the 100 BaseT high-speed Ethernet connection. SD card includes automatic download to SD when no other connection is made to the instrument


  • Extremely accurate infrared thermometer for measuring temperatures from -30°C to 650°C (-22°F to 1202°F) accurate to +1.0°C or +1.0% of reading (whichever is greater)
  • Offers precise dual-lasers for superior targeting and more accurate and repeatable measurements
  • Provides up to a 12:1 Distance to spot ratio
  • Features IP54 rating against dust and moisture


The Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers are the best tools to troubleshoot, quantify energy usage and analyze power distribution systems in a fast, easy and safe way.
  • Measure key power quality parameters: Measures harmonics and interharmonics for voltage and current, also includes unbalance, flicker and rapid voltage changes.
  • Measure with premium accuracy: Meets the rigorous IEC 61000-4-30 Class A Edition 3 standard for ‘Testing and measurement techniques–Power quality measurement methods.'
  • One-touch reporting: Create standardized reports according to commonly used standards like EN 50160, IEEE 519, GOST 33073 or export data in PQDIF or NeQual compatible format for use with third party software using the included Fluke Energy Analyze Plus Software.


  • Two-in-one IR and contact thermometer with a 30:1 distance-to-spot ratio
  • Measures temperatures from -40°C to 650°C (40°F to 1202°F)
  • Makes it easy to access advanced features with the soft-key buttons and graphical display
  • Features rugged, ergonomic design that stands up to tough industrial, electrical, and mechanical environments
  • Works with most K-type thermocouples