Home/Products/Test and Measurement/Optical Fiber Identifier/FF-3306B Handheld Optical Fiber Identifier 

FF-3306B Handheld Optical Fiber Identifier 

$95
★★★★★
* Ref. Price

Description

FF-3306B Optical Fiber Identifier can quickly identify the direction of transmitted fiber and display the relative core power without any damages to the bended fiber. When the traffice is present,the intermittently audible tone is activated.
The FF-3306B optical fiber identifier alsor recogize the modnulation like,270Hz,1kHz and 2kHz .When they are used to detect the frequency, the continuously audible tone is activated.There are four adapter heads available: Ø0.25, Ø0.9, Ø2.0 and Ø3.0.

Features
– Easy-to-use with “ONE KEY” operation.
– Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) with audible warning.
– Displays the relative core power 
– More accurate test with Sunshade
– Easy-to-replace adaptors 
– Durable metal housing and quality construction
– Lower power indication


Specifications

TypeFF-3306B
Identified Wavelength Range800-1700 nm
Identified Signal TypeCW, 270Hz±5%,1kHz±5%,2kHz±5%
Detector TypeØ1mm InGaAs 2pcs
Adapter TypeØ0.25 (Applicable for Bare Fiber),Ø0.9 (Applicable for Ø0.9 Cable )
Ø2.0 (Applicable for Ø2.0 Cable ), Ø3.0 (Applicable for Ø3.0 Cable )
Signal DirectionLeft & Right LED
Singe Direction Test Range(dBm, CW/0.9mm bare fiber)-46~10(1310nm)
-50~10(1550nm)
Signal Power Test Range(dBm, CW/0.9mm bare fiber)-50~+10
Signal Frequency Display (Hz)270, 1k, 2k
Frequency Test Range(dBm, Average Value)Ø0.9, Ø2.0, Ø3.0 -30~0 (270Hz,1KHz)
-25~0 (2KHz)
 Ø0.25-25~0 (1KHz,2KHz)
-20~0 (2KHz)
Insertion Loss(dB, Typical Value)0.8 (1310nm)
2.5 (1550nm)
Alkaline Battry(V)9
Operating Temperature(℃)-10-+60
Storage Temperature(℃)-25-+70
Dimension (mm)196X30.5X27
Weight (g)200

Standard Packages

MODELINCLUDES
FF-3306BFF-3306B Optical Fiber Identifier, 4pcs adapter heads, Sunshade, Alkaline battery, User Manual, Cotton Stick and Soft Carrying case.
FF-3306B optical fiber identifier measuring various fibers

FAQ

Q1: What are the primary functions of the FF-3306B Optical Fiber Identifier?

A: The FF-3306B identifies the direction of transmitted optical signals and displays relative core power without damaging the bent fiber. It detects signal traffic and recognizes modulation frequencies (270Hz, 1kHz, 2kHz), using audible tones to warn operators during live testing.

Q2: What fiber diameters and adapter types are supported?

A: The FF-3306B includes four interchangeable adapter heads to fit various cable sizes:

  • Ø0.25: Applicable for bare fiber
  • Ø0.9: Applicable for Ø0.9mm loose buffer cable
  • Ø2.0: Applicable for Ø2.0mm indoor cable
  • Ø3.0: Applicable for Ø3.0mm indoor cable

Q3: What are the key technical and optical specifications?

A: Key optical specifications include:

  • Wavelength Range: 800–1700 nm
  • Detector Type: 2 pcs Ø1mm InGaAs
  • Signal Power Test Range: -50 to +10 dBm
  • Typical Insertion Loss: 0.8 dB at 1310nm and 2.5 dB at 1550nm
  • Operating Temperature: -10°C to +60°C

Q4: What are the dimensions, power requirements, and standard package items?

A: Details regarding build and included accessories include:

  • Dimensions & Weight: 196 × 30.5 × 27 mm, weighing 200g
  • Power Supply: 9V Alkaline battery
  • Standard Package: FF-3306B unit, 4 adapter heads, sunshade for light-sensitive testing, 9V battery, user manual, cleaning cotton sticks, and a soft carrying case

Q5: What is the reference price, and how can I request pricing or a demo?

A: The reference price for the FF-3306B is $95. You can submit an inquiry by clicking Add to Quote or Request a Demo on the product page.

Customer Reviews

4.8 / 5.0 ★★★★★ Based on 48 customer reviews
Julian Mercer
August 12, 2026

Evaluating the FF-3306B Handheld Optical Fiber Identifier during live fiber network maintenance, the "ONE KEY" macrobend clamping operation makes identifying active traffic direction and relative core power exceptionally quick. Swapping between the four included adapter heads (Ø0.25, Ø0.9, Ø2.0, and Ø3.0) allows our technicians to test everything from bare fiber to 3.0mm indoor patch cords without risking macrobend damage. The included sunshade helps maintain precise power readings even under bright outdoor light. At a reference price of $95 USD (SKU: FF-3306B), it is an essential, durable tool for field service crews.

Elena Vasquez
June 08, 2026

This handheld optical fiber identifier performs reliably when tracing active fiber lines across crowded central office racks. Dual InGaAs detectors cover an 800–1700nm wavelength range, accurately recognizing 270Hz, 1kHz, and 2kHz modulation signals with distinct audible tones. The durable metal housing withstands daily field abuse, while low insertion loss (typical 0.8dB at 1310nm) prevents service degradation on live subscriber feeds. For comprehensive non-intrusive traffic identification at a $95 price point, the FF-3306B delivers excellent value.

Cedric Laurent
March 29, 2026

The FF-3306B is a cost-effective, high-accuracy traffic identification tool for enterprise optical cable management. Having clear LED direction indicators and relative power measurements (-50 to +10 dBm range) enables technicians to verify live links before executing splices or re-routings. The standard package is complete with a carrying case, 9V battery, sunshade, and cleaning accessories. Operating smoothly across -10°C to +60°C temperature ranges, it is a dependable addition to any fiber technician's kit.

Showing 3 of 48 top reviews.

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