---
product_id: 49284121
title: "Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing"
brand: "extech"
price: "$148.53"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/49284121-extech-ct20-remote-and-local-continuity-tester-one-person-operation
store_origin: EC
region: Ecuador
---

# Lithium rechargeable battery pack 18-function True RMS DMM 160x120 FLIR thermal imager Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing

**Brand:** extech
**Price:** $148.53
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing by extech
- **How much does it cost?** $148.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/49284121-extech-ct20-remote-and-local-continuity-tester-one-person-operation)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **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.

## Overview

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.

## Description

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

## Features

- See precisely where you need to measure with the 160x120-resolution FLIR thermal imager
- All-in-one tool, carry just one device and always have access to thermal imaging
- 18-function DMM including VFD mode, True RMS, LoZ, and NCV
- View thermal and electrical thermocouple measurements simultaneously
- Kit comes with Lithium rechargeable battery pack and flex clamp probe

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** Extech
- **Power source:** Battery Powered
- **Style:** Modern
- **Colour:** Green,Red
- **Item weight:** 0.1 Kilograms

## Images

![Extech CT20 Remote and Local Continuity Tester One Person Operation for Wire and Cable Testing - Image 1](https://m.media-amazon.com/images/I/71YnTuNcNgL.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## Questions & Answers

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

## 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

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-07*