Extech CT20 Remote & Local Continuity Tester

SKU: EXCT20

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Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
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Extech CT20 Specifications

  • Beeper

    85dB Beeper

  • Battery Life

    Approx 1 months with normal use

  • Power Supply

    9V Battery

  • Continuity Confirmation

    Equal to or less than 2.0kOhms

  • Continuity Drive Current

    Pulsed (2.0Hz) 20-50mA at 10Ohms and 2.0mA - 8.0mA at 1000Ohms

  • Wire Verification Distance

    10000' / 3048.04m (26 gauge min)

  • Fuse

    250V 0.5A fast blow

  • Operating Temperature

    10 to 113 deg. F (-12 to 45 deg. C)

  • Storage Temperature

    -4 to 176 deg. F (-20 to 80 deg. C)

  • Operating Humidity

    10 to 90% RH (non-condensing)

  • Dimensions

    3.6 x 2.2 x 1.14" (91.44 x 55.88 x 28.96mm)

  • Weight

    9.2oz (260.82g)

About Extech CT20

The CT20 is an electronic tool for electricians, alarm, cable installers and others who routinely need to check circuits for continuity and also identify cables and wires. It allows a single user to quickly identify and label two wires even when the wire ends are located in different rooms. It can accommodate test wire lengths up to 10,000-feet (3,000 meters), 26-gauge minimum. The CT20's Remote Continuity mode allows the user to check continuity and to identify two or more cables/wires simultaneously.

Extech CT20 Features

  • A bright flashing LED and loud pulsating beeper indicate local continuity
  • Remote continuity with the use of the remote probe, it does not tie-up two people when identifying and labeling long distance wire/cable runs
  • Flashing remote probe - two lead, bi-color (red/green) LED probe allows a single user to identify up to three wires or cables at a time for correct labeling with only one trip to the other end location -cuts down on multiple trips back and forth
  • Polarity verification -Drives a 20mA DC current pulse through the wires or cables under test to the bi-color remote probe; This enables the technician to identify each of the wires under test at the other end of the cable run and eliminates the possibility of false high impedance readings
  • Lightweight and pocket-sized, clips on and hangs from the cable(s) under test without falling off
  • Great for Electricians and Helpers, Cable TV and Audio System Installers, Alarm Technicians, Plumbers, HVAC Installers

What's in the box:

  • Extech CT20 Remote & Local Continuity Tester
  • Remote Probe
  • Test Leads with Alligator Clips
  • 9V Battery
  • Pouch
  • Extech Warranty