Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing
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Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing

4.5/5
Product ID: 2175252
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Details

  • Brand
    Extech
  • Power Source
    Battery
  • Style
    CT20
  • Color
    green
  • Item Weight
    0.1 Kilograms
📏Tests wire lengths up to 10,000 ft
🔊85dB beeper for clear alerts
🔋Battery powered with included 9V battery

Description

🔌 Master your circuits like a pro—wire testing made effortless!

  • READY OUT OF THE BOX - Includes remote probe, 9V battery, and carrying case—start testing immediately.
  • COMPACT LIGHTWEIGHT - Weighs just 3.5 oz and fits comfortably in your toolkit or pocket.
  • INSTANT AUDIBLE ALERTS - 85dB beeper ensures you never miss a continuity signal, even in noisy environments.
  • ONE PERSON WIRE WIZARDRY - Identify and label wires across rooms solo—no extra hands needed.
  • LONG DISTANCE TESTING POWER - Accurately test cables up to 3,000 meters (10,000 feet) with ease.

The Extech CT20 is a compact, battery-powered continuity tester designed for electricians and cable installers. It enables single-person operation to identify and label wires up to 10,000 feet apart, featuring an 85dB beeper for clear continuity alerts. The kit includes a remote probe with bi-color LED, a 9V battery, and a carrying case, making it a ready-to-use, reliable tool for precise wire and cable testing.

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Specifications

BrandExtech
Power SourceBattery Powered
StyleCT20
Colorgreen
Item Weight0.1 Kilograms
Item dimensions L x W x H2.2 x 1.14 x 3.6 inches
Upper Temperature Rating149 Degrees Fahrenheit
Measurement TypeOhmmeter
UPC013161042406 793950000205
ManufacturerExtech
Global Trade Identification Number00793950000205
Part NumberCT20
Item Weight3.52 ounces
Product Dimensions2.2 x 1.14 x 3.6 inches
Item model numberCT20
Batteries1 AA batteries required. (included)
Is Discontinued By ManufacturerNo
Size2
Thickness1 Inches
Item Package Quantity1
Number Of Pieces1
Included ComponentsProduct & Instructions Guide
Batteries Included?Yes
Batteries Required?Yes
Warranty Description1 year

Have a Question? See What Others Asked

Can this device be used to test the continuity of a single conductor wire instead of a conductor pair?
how many feet can be tested at one time ?
Hooking tester in panel box is a probl locating grnd and neg. Can you attach rem to grounding bar to test for neg and grounding wire continuity?
do the units require any kind of recalibration or servicing to ensure it is still working correctly

Reviews

4.5

All from verified purchases

K**.

Does what it says

Received today and really helped me find my issues

L**A

Extremely useful tool to figure out old house wiring

Extremely useful tool to figure out old house wiring, inexpensive too

W**N

Great little addition to your toolbox

I have an old one of these; a Sears Craftsman. Exactly the same, down to the letter. The leads to the battery finally broke off and I decided not to try to repair it, but buy a new one.I'm in the process of remodeling my home; well, with the help of a contractor and a crew of guys!I had a lot of Romex cable running to and from places, just stopping or connected up to something for some unknown reason. I'm using this Extech (and my old Sears) to track down which wires go where. It is a simple principal; the device just sends a small charge from the 9 volt battery through two wires (hot and neutral as an example) and ifit's the same hot neutral at the other end, the light and buzzer lets you know.Now REMEMBER, TURN OFF THE POWER! Get an A/C tester, like the Klein, so you don't get a shock.Great product!

M**K

Extech CT20 Continuity Tester - Reliable with Room for Improvement - 4/5 Rating

I recently purchased the Extech CT20 Remote and Local Continuity Tester in green, and I'm generally satisfied with its performance. I would rate it 4 out of 5 stars.The continuity tester serves its purpose well, allowing me to quickly check for continuity both remotely and locally. The convenience of this dual functionality is a significant advantage, making troubleshooting tasks more efficient.However, I do share the sentiment that the overall quality of the tester could be improved. It gives the impression of being slightly less robust than I had hoped for, which could affect its durability over time, especially with regular use.On the positive side, the tester is user-friendly and straightforward to operate. The green color is a nice touch, making it easy to spot in a tool bag or workspace.I'm particularly pleased with the accurate results and the tester's reliability in detecting continuity issues. It's a valuable tool for anyone dealing with electrical or wiring tasks, contributing to a smoother and more efficient workflow.In conclusion, the Extech CT20 Remote and Local Continuity Tester is a reliable tool that gets the job done. While the quality could be a bit better, it offers accurate results and convenient dual functionality. If you're in need of a continuity tester for your electrical work, this Extech CT20 model is a suitable choice that delivers on its intended purpose.Sincerely,Mark

E**M

Ok

Ok

J**I

Excellent, Versatile Continuity Tester

I bought this several months ago, and used it for the first time yesterday. This is a great, labor saving device. You can use the basic tester to determine continuity very quickly -- great for checking incandescent lights, switches, etc. For long wire runs, just connect the tester to one end of a set of two wires, and connect the remote indicator to the other end. The remote indicator does not light if you have the wrong wires, lights up red if you have the right wires but are reversed from the tester at the other end, and lights up green if everything is good. I have a couple of very minor gripes - the tester is only for use with non-energized wires, and should have come with probes as well as alligator clips for access to electrical outlets. All-in-all, a great, reasonably priced product.

R**D

DEAD AFTER SITTING A YEAR

DOES NOT WORK AFTER SITTING FOR A YEAR.

P**A

Works well

Contractor hard wired Ethernet to each room, but did not label wires in the termination point. Quick and easy way to figure out which wire leads to which room.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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€ 75.94

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Extech Ct20 Remote And Local Continuity Tester One Person Operation | Desertcart Spain