Extech Instruments CT70 AC Circuit Load Tester
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Extech Instruments CT70 AC Circuit Load Tester

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Quickly Checks for AC Outlet Load Handling Capabilities and Outlet Tester functions
  • True RMS measurements
  • Finds false grounds, Tests GFCI and EPD circuits
  • Voltage measurements: Line, ground-to-neutral, and peak
  • Measures frequency of the voltage
  • Checks 3-wire receptacle configuration

Item #: 90284

Ships in 1 to 2 days

$199.96
  • Details
  • Specs
  • Reviews
  • What's Included
  • The Extech CT70 AC Circuit Load Tester can detect circuit and wiring problems such as: Poor ground impedance, false grounds, missing ground fault protection, low voltage availability under load, and high ground-to-neutral voltage. In addition, the CT70 tests GFCI and EPD circuits.

    Circuit and wiring issues listed above can introduce shock hazards (from grounding issues) and can comprise performance of machinery and equipment (from poor ground impedance, lack of sufficient voltage under load and/or high ground-to-neutral voltage). In addition, fire can result from the heat generated by high resistance points in a circuit.

    Proper wiring habits have been shown to greatly increase power quality performance. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

    The CT70 AC Circuit Load Tester can test outlets or circuits under load for proper wiring, reverse polarity, and the presence of a ground. The CT70 uses a simple menu-driven display to allow the user to quickly see line voltage, voltage drop under full load, ground-toneutral voltage, and line impedance. The GFCI testing utility is performed separately per UL-1436, disrupting the flow of electricity if a functioning GFCI is present.



      AC Load Tester:
    • Selectable loads of 12, 15 and 20 Amps
    • Measures loaded and unloaded AC Line Voltage
    • Calculates and displays % Voltage Drop and Line Impedance
    • Displays Peak Line Voltage and Frequency

      Outlet Tester functions:
    • Neutral to Ground Voltage
    • Hot, Neutral and Ground Impedance
    • GFCI Trip Time
    • GFCI Trip Current
    • Open or Reversed wiring

  • Specifications
    Manufacturer Extech Instruments
    Manufacturer Product No. CT70
    UPC 793950000700
    AC Voltage 90V to 240V
    Frequency 45hz to 65hz
    Peak Line Voltage 350VDC
    % Voltage Drop 0.1 to 99.9%
    Dimensions 8" x 2.8" x 2" (203 x 71 x 50 mm)
    Weight 11.2oz (317.5g)


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  • 1x - AC Circuit Tester
    1x - 3 Prong AC Test Cord

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