DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Desert Online General Trading LLC

Dubai, United Arab Emirates

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

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

Q: Can this device be used to test the continuity of a single conductor wire instead of a conductor pair?

I wondered about that too so I asked my son in law he's an electrician according to him you can't do it remotely but it can be done without the remote option as long as you can get to both ends of the single wire which makes this device useless in most cases because most of the wires I would want to remotely test are single wire

Q: how many feet can be tested at one time ?

Not sure what your asking about how many feet? It is for finding continuous flow in wiring if your not sure which wire goes where. This is a video I used to help me to figure out a 4 way switch setup. http://www.thisoldhouse.com/toh/tv/ask-toh/video/0,,20785338,00.htmlHope it helps.

Q: 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?

You can test everything you want as long as the object that you want to test is de-energized

Q: do the units require any kind of recalibration or servicing to ensure it is still working correctly

No, none that I know of. It works fine and comes with instructions. It saves a lot of time and trouble, especially if you are working alone.

Product ID: 49284121

Secure Transaction

Details

Brand
Extech
Power source
Battery
Style
Modern
Colour
Green Red
Item weight
0.1 Kilograms

🔋Lithium rechargeable battery pack

🔌18-function True RMS DMM

🌡️160x120 FLIR thermal imager

Frequently Bought Together

Extech CT20 Remote and Local Continuity Tester

Southwire Tester; Continuity PRO 40040S

Klein Tools 80016 Circuit Breaker Finder Tool Kit with Accessories, 2-Piece Set, Includes Cat. No. ET310 and Cat. No. 69411

Description

🌟 Test Smarter, Not Harder — The Ultimate Continuity Tester for the Modern Pro

TRUE RMS ACCURACY - 18-function digital multimeter with True RMS, LoZ, NCV, and VFD modes for professional-grade readings.
ONE PERSON OPERATION - Designed for solo pros—streamline your workflow and boost efficiency on every job.
ALL IN ONE POWERHOUSE - Combine thermal and electrical testing in a single sleek device—carry less, do more.
LONG LASTING RECHARGEABLE BATTERY - Stay powered with a lithium rechargeable battery pack that keeps you going all day.
PINPOINT PRECISION THERMAL IMAGING - See exactly where to test with high-res FLIR thermal imaging for flawless diagnostics.

The Extech CT20 is a compact, battery-powered continuity tester featuring a 160x120 FLIR thermal imager and an 18-function True RMS digital multimeter. Designed for one-person operation, it combines thermal and electrical measurements in a single device, powered by a rechargeable lithium battery pack for reliable, on-the-go performance.

Specifications

Manufacturer	Extech
Part Number	CT20
Product Dimensions	5.59 x 2.9 x 9.15 cm; 100 g
Batteries	1 AA batteries required. (included)
Item model number	CT20
Size	2
Colour	Green,Red
Style	Modern
Material	ABS
Pattern	Single
Power Source	Battery Powered
Item Package Quantity	1
Number of Pieces	1
Measurement System	Metric
Included Components	Product & Instructions Guide
Batteries included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Item Weight	100 g

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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

55978CFA

Duties & taxes incl.

Cote D' Ivoirestore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews