B3 Sc/FC/St 650nm Fiber Red Light Visual Fault Locator Pen

• Customization: Available
• Type: Fiber Visual Fault Locator Pen
• Certification: CE, RoHS, ISO
• Model NO.: VFL-B3
• Customized: Customized
• Condition: New
• Feature: Compact / Universal Connector / Continuous
• Fiber Compatibility: Sc, FC, St
• Connector Interface: 2.5mm Standard Ferrule
• Sample: Available Upon Request
• Transport Package: Refer to Packing List
• Specification: Refer to packing list
• Trademark: HOLIGHT
• Origin: China
• HS Code: 85447000
• Production Capacity: 100, 000 PCS/Month

Product Description

B3 SC/FC/ST 650nm Fiber Red Light Visual Fault Locator Pen

The B3 Optical Fiber Visual Fault Locator is a compact and powerful red light pen designed for rapid identification of breaks, bends, and poor connections in optical fiber networks. With a 650nm laser, it supports both continuous and pulse output modes, making it ideal for FTTH, datacom, and telecom field testing.

Features

Applications

 

• 650nm visible red laser for clear fault detection;
• Detects breaks, bends, and poor connectors instantly;
• 2.5mm universal interface for SC, FC, ST connectors;
• Continuous and pulse output modes;
• Rugged aluminum housing and pocket-size design;
• Optional power levels from 1mW to 30mW.

• FTTH fiber installation and inspection;
• Optical cable maintenance;
• Patch cord and pigtail continuity test;
• Connector inspection;
• ODF network fault location;
• Classroom fiber optic training.

Product Specifications

Output Wavelength	650nm	Interface Type	2.5mm Universal Adapter (SC/FC/ST)
Operating Temperature	-20 ~ +60°C (Non-Condensing)	Storage Temperature	-40 ~ +85°C
Dimensions (mm)	125 × 36 × 17	Weight (g)	39~48
Battery Type	2 × AA Batteries or Rechargeable Lithium Battery (Optional)
Working Time	>24h (AA Batteries), >12h (Lithium Battery)

Customization Options

Optional LC interface adapter;

OEM logo and private label printing;
Packaging style and barcode labeling.

Quality Assurance

CE / RoHS compliance;
100% output stability test before shipment;
ISO9001-certified production line.

Packing & Delivery

Standard export carton with protective packing;
Custom logo or barcode label available;
Lead time: 5–10 working days;
Delivery via DHL/FedEx/UPS or sea freight.

Customer Reviews

"Compact and powerful VFL—ideal for daily field use."

"Quickly helps us identify broken fiber or loose connectors."

"Works great with SC/FC/ST. Batteries last long."

"We ordered custom packaging and logo—very professional delivery."

Buyer Benefits

Exhibitions We Attended

No MOQ for most models;
Free sample available for quality testing;
Highly competitive price points;
Fast and flexible production timelines;
OEM/ODM customization welcomed.

Related Products

HOLIGHT has participated in:
• ICT Poland -PL
• Cairo ICT -EG
• TechEXPO USA
• LEAP Saudi Arabia
• Expo ISP Peru

Keyword Summary

650nm Visual Fault Locator, B3 VFL Pen, Red Light Fiber Tester, SC FC ST Fiber Locator, Fiber Break Detector, Mini Fiber Optic Tester, VFL 10mW Pen, Universal Interface Fiber Locator, Handheld Cable Locator Tool

FAQ Section

Q1: What connector types does the B3 support?
A1: It supports SC, FC, and ST directly. LC with optional adapter.

Q2: What power levels are available?
A2: Options include 1mW, 5mW, 10mW, 20mW, and 30mW.

Q3: How far can it detect faults?
A3: Depending on power, it detects up to 20km on SM fiber.

Q4: Is the laser continuous or pulsed?
A4: Both modes are available—switch between CW and pulse easily.

Q5: Can I get my logo printed on the pen?
A5: Yes. We offer OEM branding for MOQ of 100 pcs.

Q6: Are batteries included in the shipment?
A6: Due to shipping regulations, batteries are usually not included.

Q7: How durable is the housing?
A7: It's made of sturdy aluminum alloy—drop-resistant and long-lasting.

Q8: What's the lead time for bulk orders?
A8: Typically 5–7 working days depending on quantity and customization.