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Digital & Vector Signal Analyzers, Signal Generators and Fast Synthesizers, Spectrum


  • Two electrically isolated inputs
  • CAT III 1000 V / CAT IV 600 V safety rated
  • 60 MHz bandwidth model
  • 625 MS/s
  • Deep memory: 10,000 samples per channel waveform capture so you can zoom in on the details
  • Dedicated 5000 Count digital multimeter in 2 Channel models
  • Connect-and-View continuous auto-trigger, single shot, pulse width, and video triggering
  • ScopeRecord roll mode, capture waveform sample data for up to 48 hours
  • TrendPlot, trend measurement readings for up to 22 days
  • Advanced automatic measurements, power (Vpwm, VA, W, PF) and time (mAs, V/s, w/s)
  • IP-51 rated for dust and drip proof to withstand harsh environments
  • Isolated USB ports for memory devices and PC connectivity
  • Li-Ion battery for extended operating timespan
    • Up to 4 hours (BP290 included standard) or up to 8 hour with optional BP291
    • Charge spare battery using optional external battery charger EBC290
  • Easy-access battery door to make it easy to swap batteries
  • A handy slot to tether and lock down the oscilloscope while unattended using a standard Kensington® lock


  • 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


  • Three-phase power quality recorder fully compliant to IEC 61000-4-30 Class-A and consistent with compliance testing
  • Uses GPS time synchronization to correlate data with events or datasets from other instruments with precision
  • Offers flexible and fully configurable thresholds and scale factors to allow users to define detailed criteria for detecting and recording disturbances


  • Wireless technology allows the display to be carried up to 30 ft. away from the point of measurement for added flexibility without interference with measurement accuracy
  • The removable magnetic display can be conveniently mounted where it is easily seen
  • iFlex® Flexible Current Probe expands the measurement range to 2500 A AC
  • CAT IV 600 V, CAT III 1000 V
  • Integrated low pass filter and state-of-the-art signal processing allows for use in noisy electrical environments while providing stable readings
  • Proprietary inrush measurement technology to filter out noise and capture motor starting current exactly as the circuit protection sees it
  • Ergonomic design fits in your hand and can be used while wearing protective equipment
  • Radio transmitter automatically sets the correct measurement range so you do not need to change the switch positions while taking a measurement
  • Three-year warranty
  • Soft carrying case
Safety Conformance IEC/EN 61010-1:2001, 1000V CAT III, 600V CAT IV


  • 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.