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

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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

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Extech CT20 Remote and Local Continuity Tester

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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

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