Top 10 Best fiber identifier in 2026

Last Updated - 6/8/2026

🏆Best Choice

D YEDEMC

D YEDEMC Live Optical Fiber Identifier with Wave Respond 800-1700nm Built in 10KM VFL and Optical Power Meter OPM Functions FTTH Tool (YD-3309D)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Indicate the signal directions and power in fiber,displays the relative core power.Can detect optical signals in the tone signal fixed load,270Hz,1KHz and 2KHz,to identify a specific optical fiber,can quickly find the necessary fiber.
•Build in VFL can measure the fiber distance is about 10-15 kilometers.
•Build in OPM function,test wavelength 850/1300/1310/1490/1550/1625nm,Measurement range -50~+26dB.Connectortype 2.5 universal connector.
•Metal gripper,no need to change the adapter,Application of optical fiber 250um/900um/2mm/3mm
•Lightweight design and LED color screen.,outline size 230*43*36mm,weight 200g.Lifetime Friendly Customer Service,if have problem,pls contact us.

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$139.00

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D YEDEMC

D YEDEMC Live Optical Fiber Identifier with Wave Respond 800-1700nm Built in 10km VFL FTTH Tool

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Indicate the signal directions and power in fiber,displays the relative core power.(Macro bends are the use of fiber-optic bending leak out when the weak optical signal).Some fiber cladding is too thick, or some light is not easy to leak out (for example 850/1300nm), so it's hard to measure. The easiest to measure wavelength is 1310 / 1550nm.If you want to measure accurate power, please choose a power meter.
•Indicate the signal presence or absence(Live or dark fiber)
•Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) with audible warning
•Build in VFL can measure the distance is about 10-15 kilometers.
•Lifetime Friendly Customer Service,if have problem,pls contact us.

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$139.00

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Karvinger

Karvinger Optical Fiber Identifier with EasyClamp Technology - Professional OFI Traffic Identifier Tool with 850 to 1700nm Wave Response - Live Fiber Detection

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【Advanced Signal Detection Technology】- Professional-Grade optical fiber identifier (OFI) featuring precision micro-bending technology for accurate live fiber detection. Efficiently measures optical power and signal direction with comprehensive frequency detection (CW, 270Hz, 1kHz, 2kHz). Optimized performance for 1310nm/1550nm wavelengths with broad compatibility range of 850-1700nm.
•【Motorized EasyClamp System】- Revolutionary motorized clamping mechanism eliminates manual pressure, ensuring consistent and reliable fiber testing with just one button press. Universal compatibility with multiple fiber types (0.25mm bare fiber, 0.9mm, 2.0mm, and 3.0mm pigtails) without changing clamps, maximizing efficiency in fiber optic testing workflows.
•【Integrated Professional Features】- Built-in Visual Fault Locator (VFL) with continuous and flashing modes for comprehensive fiber testing. Includes bright LED work light for low-light environments and color display for clear signal readings. Rechargeable battery provides up to 24 hours of operation with LED function and 1000+ identification cycles.
•【Professional Field-Ready Design】- Ergonomically engineered with advanced cold-molding technology for durability and comfort during extended use. Complete kit includes portable carbon fiber case, USB charging cable, lanyard, and comprehensive manual. Compact size (6.3 x 2.0 x 1.4 inches) and lightweight design (0.44 lbs) for easy field deployment.
•【Buy Risk-Free】- We have made customer satisfaction our number 1 priority. Because of this, the Karvinger OFI is guaranteed for 1 year from the date of purchase. The article does not suit you? Return it to us within 30 days and receive a refund. If you encounter a problem or have a question, our 100% English customer service responds 7 days a week.

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$169.90

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ORIENTEK

ORIENTEK TFI-40 Optical Fiber Identifier All-in-one Chuck Live with 10mw VFL 800nm-1700nm Fiber Detector Traffic Identifier OFI

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Chucks: Multi in one chucks; Easy test directly,convenient and eﬃcient; Suitable for 0.25; 0.9; 2.0 and 3.0mm
•Design: Small and practical; No need to replace the chucks
•Be equipped with LED light; More convenient to work in the dark
•Friendship: Approximate core power reading; Battery low indication
•Detector Type: 1mm InGaAs 2 pcs; Testing sensitivity -40dBm to 10 dBm

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$69.50

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BAOSHLA

BAOSHLA 40A Fiber Optic identifier OFI 3-in-1 Function 800-1700nm with VFL 10KM Fiber Optic Cable identifier Detector with LED Light Single Mode/Multi Mode

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Three signals can be identified:The optical fiber identifier is used for identifying 3 commonly used signal frequencies, namely 2KHz, 1KHz, 270Hz; when the frequency is recognized, it will beep
•Quick identification:The optical fiber identifier can quickly identifies the direction of transmitted fiber and display the relative core power without damaging the fiber or disrupting the network
•VFL:The bottom cover of the optical fiber identifier can be opened.VFL effectively cooperates with the optical fiber inspection
•Microbending test technology:The live optical fiber identifier can accurately identify fiber direction. When the optical fiber has a signal, the left and right direction lights indicate the signal direction. When the left direction light is on, it indicates that the light source is from right to left
•When holding the optical fiber identifier,Pull the back measurement switch. Clamp the optical fiber to automatically start the test. Press down to clamp the optcal fiber

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$45.38

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SAIVXIAN

Green A-40A Live Fiber Optic identifier All-in-one Built in Visual Fault Locator 10KM and LED Light OFI Single Mode/Multi Mode Fiber Optic Cable identifier Detector FTTH Tool

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Powerful Functions：Indicate the signal directions and power in fiber,displays the relative core power. Can detect optical signals in the tone signal fixed load,270Hz,1KHz and 2KHz,to identify a specific optical fiber,can quickly find the necessary fiber.javascript
•Efficient and accurate：Compact and practical, very easy to operate, low error detection and ins
•Visual Fault Locator：Build in 10KM VFL can measure the fiber distance is about 5-10 kilometers

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$43.90

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KOMSHINE

Optical Fiber Traffic Live Identifier All-in-one Chuck Respond 800nm-1700nm Built in VFL Visual Fault Locator, Cable Traffic Detector -40dBm to 10 dBm with LED Light Suit for 0.25/0.9/2.0/3.0 Fiber

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【Built-in VFL】2.5mm universal connectors，strong stability，testing distance is up to 8-10KM
•【Testing sensitivity】-40dBm to 10 dBm; 【Strong and stable light source】strong penetrating power
•【Universal back clip design】suitable for 0.25/0.9/2.0/3.0 fiber
•【Be equipped with LED light】more convenient to work in the dark
•【Identified Signal Type】Indicate the signal directions and power in fiber,displays the relative core power.Can detect optical signals in the tone signal fixed load,270Hz,1KHz and 2KHz,to identify a specific optical fiber,can quickly find the necessary fiber.

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$43.90

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KOMSHINE

Fiber Optical Live Identifier Komshine Classic KFI-40V Identifies Dominant Traffic Direction Indicator Multi in one Chuck 0.25/0.9/2.0/3.0mm FTTH Tool Low False Detection Telecom Maintenance CATV

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•[● Multi-in One Chuck] Suitable for 0.25/0.9/2.0/3.0mm. No need to change the chuck. Easy test directly, conenient and efficient. KFI-40V can quickly identify the direction of transmitted fiber and display the relative core power without any damages to the bended fiber. When the traffic is present, the intermittently audible tone is activated.
•[● Identifies 3 common test tones] Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) with audible warning
•[● Convenient to use] Indicate the signal presence or absence(Live or dark fiber); Identifies dominant traffic direction audiable alarm
•[● Low Loss and Friendship] Low false detection & inser-tion loss; Approximate core power reading; Battery low indication
•[● Applications] Telecom Maintenance CATV Maintenance Fiber Optic lab testing Other Fiber Optic Measurements

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$69.50

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ANPTAIKE

Optic Fiber Identifier VFL LED Light OFI Live Fiber Optical Cable Identifier Detector Tester 900-1650nm SM and MM OFI Testing Tools

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Leading business simple test identification, direct, convenient, efficient, sending sound and light alarm.
•Approximate core strength. It can identify 3 common test sounds.
•Compact and practical, very easy to operate, low error detection and ins.
•The fiber optic identifier can also detect theexistentof 2KHz, 1kHz and 270Hz modulated tones by continuously audible tones.
•It can quickly identify the direction of transmission fiber and display relative core power.

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$46.81

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JONARD TOOLS

Jonard Tools OFI-50 Optical Fiber Identifier with 2 mm, 3 mm, 900 nm & 250 nm Adapters

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•QUICK IDENTIFICATION: Quickly identifies the direction of transmitted fiber and display the relative core power without damaging the fiber or disrupting the network
•AUDIBLE WARNING: Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz)
•EASY-TO-READ DISPLAY: Shows traffic direction and relative core power clearly
•INCLUDED SUNSHADE: Protects the fiber optic cable from interference to provide more accurate readings
•KIT INCLUDES: Fiber Identifier, Sunshade, Carrying Pouch, and 3 mm, 2 mm, 900 nm (0.90 mm) and 250 nm (0.25 mm) Adapters,

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$561.44

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