Top 10 Best tdr cable tester in 2026

Last Updated - 6/9/2026

🏆Best Choice

KLEIN TOOLS

Klein Tools VDV500-820 Wire Tracer Tone Generator and Probe Kit Continuity Tester for Ethernet, Telephone, Speaker, Coax, Video, and Data Cables, RJ45, RJ11, RJ12

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•PROFESSIONAL GRADE TONE GENERATOR: Includes a professional-grade analog tone generator and tracing probe for accurate and efficient tracing of open-ended, non-energized wiring
•VERSATILE TONE CADENCES: Toner-Pro features 5 distinct tone cadences and can transmit signals over 1,000 feet, ensuring reliable tracing capabilities
•SECURE WIRE ATTACHMENT: Rugged Angled Bed of Nails (ABN) clips securely attach to wires, providing a stable connection during tracing operations
•EASY CONNECTIONS: RJ11 plug easily connects to telephone and RJ45 data jacks, allowing for convenient toning of wire pairs
•CONTINUITY AND POLARITY TESTING: Toner-Pro tests for continuity and polarity, with clearly labeled LEDs indicating the results for easy interpretation
•NOISE-REDUCING HEADPHONE JACK: Probe-Pro features a 3.5 mm headphone jack (headphones not included) for use in noisy environments, ensuring clear audio feedback during tracing
•RESPONSIVE AND REPLACEABLE TIP: Probe-Pro comes with a responsive probe equipped with a durable non-metallic, replaceable conductive tip (VDV999-068, sold separately) for long-lasting performance and precise tracing

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$78.99

$99.98

-21%

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KLEIN TOOLS

Klein Tools VDV526-200 Cable Tester, LAN Scout Jr. 2 Ethernet Cable Tester for CAT 5e, CAT 6/6A Cables with RJ45 Connections

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•VERSATILE CABLE TESTING: Cable tester for data (RJ45) terminated cables and patch cords, ensuring comprehensive testing capabilities
•LARGE BACKLIT LCD: Backlit LCD display enables easy reading of pin-to-pin wiremap results, even in low-lit areas
•COMPREHENSIVE FAULT DETECTION: Test for Open, Short, Miswire, Split-Pair faults, Cross-over, and Shield, providing thorough fault detection
•INTUITIVE USER INTERFACE: User-friendly interface with three buttons and simple, easy-to-identify test responses, ensuring a smooth testing experience
•MULTIPLE TONE GENERATOR STYLES: Tone on a single wire, wire pair, or all 8 conductor wires using the multiple style tone generator (solid/warble); requires probe Cat. No. VDV500-123 (sold separately)
•AUTO POWER-OFF FEATURE: Auto Power-Off feature activates after 10 minutes in test mode and 60 minutes in tone mode, conserving battery life
•CONVENIENT AND EFFICIENT: Compact and portable design for easy transport, allowing for on-the-go cable testing

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$53.50

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KLEIN TOOLS

KLEIN TOOLS VDV501-851 Cable Tester Kit with Scout Pro 3 for Ethernet / Data, Coax / Video and Phone Cables, 5 Locator Remotes

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•VERSATILE CABLE TESTING: Cable tester tests voice (RJ11/12), data (RJ45), and video (coax F-connector) terminated cables, providing clear results for comprehensive testing
•EXTENDED CABLE LENGTH MEASUREMENT: Measure cable length up to 2000 feet (610 m), allowing for precise cable length determination
•COMPREHENSIVE FAULT DETECTION: Test for Open, Short, Miswire, or Split-Pair faults, ensuring thorough fault detection and identification
•BACKLIT LCD DISPLAY: Backlit LCD screen displays cable length, wiremap, cable ID, and test results, ensuring easy readability in various lighting conditions
•EFFICIENT CABLE TRACING: Trace cables, wire pairs, and individual conductor wires using the multiple style tone generator (requires analog probe Cat. No. VDV500-123, sold separately), simplifying cable tracing tasks
•HUB BLINK MODE: Hub blink mode enables the identification of port locations on a hub or switch, facilitating efficient network management
•MULTI-CABLE RUN MAPPING: LanMap and CoaxMap Location Remotes (5 each) allow for mapping and ID of multiple cable runs in a single step, enhancing cable management and organization

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$96.25

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NOYAFA

NOYAFA NF-8506 Network Cable Tester with IP Scan, TDR CAT5 CAT6 Ethernet Cable Tester, PoE PingTest, Network Rate Test, Port Flashing, Network Tester Cable Toner for RJ11 RJ45

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•New Upgraded Multi-function Network Cable Tester: NF-8506 TDR network tester has IP scanning, POE test, anti-interference RJ11 RJ45 CAT5 CAT6 cable test, continuity test, Ping network speed test, port flashing, sensitivity adjustment, cable Function of length test and LED flashlight.
•Time Domain Reflectometry (TDR): The NF-8506 Network cable tester is a portable Time Domain Reflectometry (TDR) cable length tester. The cable tester can accurately measure the cable length in the range of 8.2ft/ 2.5m-656ft /200m, find the cable fault distance and facilitate real-time field measurementt
•PING Tester+IP Scanner: This handheld Ping cable toner can be used to diagnose and maintain local area networks (Lans) running TCP/IP protocols. Powerful PING capabilities can verify connections, check the integrity of transmitted and received data, indicate network traffic load by measuring round-trip times and provide IP addresses
•Network Rate Test + Cable Continuity Test: Ethernet tester can quickly assess network rate issues. Conducts PING tests from multiple locations to gauge server and website response speeds. Allows users to ensure the integrity and connectivity of network cables by identifying any breaks, openings, or short circuits along the cable length.
•POE Tester: Identifies PoE devices efficiently. Detects crossover methods (unknown/end-span/mid-span/8-core power supply) and polarity. Comprehensive PoE detection, including non-standard, IEEE 802.3AF, and IEEE 802.3AT.
•Port Flashing and Identification: Facilitates quick identification of network cable ports. Indicator lights on the connected port in the device flash to help locate cables accurately. Displays port information including operating rate, duplex mode, and negotiation settings.

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$107.99

$119.99

-10%

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NOYAFA

NOYAFA NF-826 Underground Cable Locator Wire Tracker, for Dog Fence Cables Irrigation, Wall and Underground Pipeline Wire Detector, Advanced Circuit Breaker Finder for Wall and Underground Cables

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Underground Wire Locator: Effortlessly locate buried cables and pipelines with NOYAFA NF-826 Underground Wire Locator. Wire tracer range-Up to 3-4 feet deep and 2000 feet in length.This portable instrument includes a transmitter, receiver, anaccessories, and uses digital circuit technology to ensure stable and reliable electrical performance. Save time and avoid damage to walls or ground by diagnosing fault locations without digging up the entire cable path.
•Wire Break Locator: NF-826 wire tracer can accurately detect single-core and multi-core cables, as well as metal pipes buried in walls or underground. It is ideal for inspecting safety circuits, covered sockets, and junction box issues, and can quickly locate short-circuit faults in underfloor electric heating lines.. (NOTICE: The short-circuit point test must first know the short-circuit core, otherwise it cannot be tested)
•High Sensitivit: NF-826 underground cable locator can be adjusted manually or automatically. The circuit tracer works under mute mode and features automatic frequency sweep functions and a flashlight, backlight, and automatic shutdown functions after 10 minutes of inactivity. Additional transmitters can extend or distinguish multiple signals.
•Practical Wire Tracer Tools :The circuit breaker finder transmitter comes equipped with a self-checking function to detect its own working status, which is displayed on the LCD screen. The line tracer transmitter can also linearly measure AC/DC voltage from 12 to 400V, making it indispensable for installation and maintenance of weak current systems, communication lines, computer networks, and other metal wire circuits.
•Reliable Performance: NOYAFA NF-826 features a built-in 1400mAh lithium battery with a running time of 6-10 hours, and convenient charging. Perfect for a wide range of applications such as weak current system installation, communication lines, wiring circuits, telephone systems, computer networks, and metal wire circuits, making it suitable for professionals and DIY enthusiasts alike.

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$127.99

$134.95

-5%

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KLEIN TOOLS

Klein Tools VDV501-852 Cable Tester with Remote, VDV Scout Pro 3 Test Kit Locates and Tests Voice, Data and Video Cables

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•VERSATILE CONNECTION TESTING: Tests voice (RJ11/12), data (RJ45), and video (F-connector) coax connections, ensuring comprehensive testing capabilities
•EFFICIENT TEST + MAP REMOTE: Self-storing Test + Map Remote (#1) tests, maps, and IDs a cable run in a single step, streamlining the testing and identification process
•POWER OVER ETHERNET (PoE) TESTING: Power over Ethernet Tester displays PoE wire and voltage information, enabling convenient PoE testing and troubleshooting
•CABLE TRACING FUNCTIONALITY: Trace cables, wire pairs, and individual conductor wires using the tone generator (requires analog probe Cat. No. VDV500-123, sold separately), facilitating cable tracing tasks
•EXTENDED CABLE LENGTH MEASUREMENT: Measures cable length up to 2,000 feet (610 m), allowing for accurate determination of cable length
•MULTI-CABLE RUN IDENTIFICATION: Identify multiple cable runs with location-mapping remotes, enhancing cable management and organization
•COMPLETE KIT INCLUSIONS: Kit includes 18 RJ45 LAN locator remotes, 18 F-coax locator remotes, 2 female-to-female coax barrel adaptors, 2 RJ45, RJ11, and RJ12 jumper cables (6-Inch), carrying case, and 9V battery, providing a complete testing solution

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$184.98

$199.99

-8%

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KOLSOL

KOLSOL Network Cable Tester, Ethernet Wire Tracer with NCV & Lamp for CAT5 CAT6, PoE Tester Detect Voltage Measure Fault Distance by TDR NF-8209

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【Digital cable scanning】NF-8209 lan cable tester is a new generation to offer AC filter and analog signaling all in one network toner and probe. It has three modes for options to track cable like AC filter mode, analog mode and PoE mode.
•【Fault distance location】Rj45 cable tester measure cable length and locate fault distance accurately for lan cable. the range is 200m.That means it's equipped with the most powerful cable location technologies for any work environment.
•【Multi Function】Network cable tester kit includes cable length measurement , cable faults testing, PoE testing, hub blink and NCV function, all these makes it a must-tool for cabling engineers.
•【PoE information testing & Hub blink】 Identify which pins are providing power and detect how much voltage, identify which the type of PSE (at/af standard).Locate network port by the flashing port light on Hub / Switch. Available to 10M/100M Hub/ switch.
•【Cable continuity testing & NCV】Test physical status for STP, UTP lan cable. Detect AC voltage presence (50V-1000V).

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$54.99

$59.99

-8%

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GOYOJO

TL280 Cable Fault Tester TDR Cable Fault Locator Coaxial Cable Communication Cable Wire Fault Locater Tester 2km

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•DAGC (Digital Gain Automatic Control) system: The gain can be modified digitally. Eliminate the waveform distortion caused by the potntiometer knob. It can also do pure linear adjustment, which is convenient for manual testing.
•Using ARM CPU with FPGA technology, can quickly perform various complex operations and determine fault waveform accurately.
•Digital waveform automatic recognition technology: automatically recognize the waveform that are difficult for human to determine.
•Waveform comparison function, it is convenient to compare the test waveform of the fault cable and the normal cable, and clearly find the fault point location.
•High-power lithium battery, which can be used for up to ten hours (with specialized power charger). With data interface to support customers upgrade the system remotely.
•Large-screen LCD color display, humanization design of the interface menu, fast digital press button, easy for users to operate.

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$219.00

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UNI-T

UNI-T Handheld TDR Cable Wire Tester POE Network Cable Length Sequence Detector RJ11 RJ45 LCD Display Adjustable Sensitivity Line Finder (UT685B-Kit)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【MULTI-FOUNCTIONAL CABLE TESTER】: UT685B Kit is a 2.8-inch backlit LCD display with a resolution of up to 0.3m and a cable tester that can measure a length of 500m. It has TDR technology to test the cable length, cable ID and fault point distance without blind spots, and uses a graphical display interface. At the same time, it can test RJ11, RJ45 and coaxial cable types, and can identify POE standards.
•【POE TESTING】: Can detect whether there is PoE power supply (Power over Ethernet module) and PoE standards (802.3AF, 802.3AT, 802.3BT) in the network cabling.
•【ADJUSTABLE SENSITIVITY】:When the receiving signal is weak, turn up the gear When the received signal is strong, turn down the gear.
•【NCV DETECTION】: Press the "NCV" button on the receiver to turn on the NCV function. When the target cable or socket is carrying more than 40V AC, the receiver will beep and beep, and the "NCV" indicator will flash synchronously to ensure the safe operation of personnel.
•【WIDELY USED】: Network installation, computer room maintenance and other daily network communication scenarios, engineering wiring, coaxial cable measurement.

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$140.99

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Jonard Tools

Jonard Tools TDR-100 Network Cable Tester and TDR - with Cable Tracing Probe, RJ45 Adapter, LCD Display, and Carrying Case

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•COMPLETE CABLE TESTING KIT: Includes cable tester and TDR, tracing probe, RJ45 adapter cable, (6) AAA batteries, and a convenient carrying case for full testing functionality right out of the box.
•ADVANCED TDR CAPABILITIES: Measures cable lengths and detects faults or breakpoints from 6.6 ft up to 1,312 ft using Time Domain Reflectometry (TDR) technology.
•WIRE PAIR MAPPING: Easily identifies line sequence, opens, shorts, wrong pairings, and reversed connections, helping technicians verify cable integrity with precision
•BUILT-IN CABLE TRACER: Functions as a tone generator and probe for effective cable tracing in complex installations.
•2.5" LCD & FLASHLIGHT FOR DARK AREAS: High-visibility color display and integrated flashlight in the probe make this tool ideal for working in dim environments.

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$199.95

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