B3 Mini Visual Fault Locator Fiber Tester 650nm Red Light Universal SC/FC/ST Fiber Test Light

650nm Red Light Source: This is a highly visible red light source for fast, effective fiber fault finding.
Universal 2.5mm Adapter: A 2.5mm adapter that works with SC, FC, and ST connectors with ease.
Replaceable Ceramic Core: A 7mm ceramic ferrule that will last for prolonged use.
Flip-Cap Design: You can put up the cover with just one hand and protect your light from dust and dirt.
Dual Power Supply: You can use AAA batteries or the built-in rechargeable lithium battery.
USB Charging: Charge your light from a power bank or computer or car charger.
Strong Illumination: A high-brightness LED lamp will help you see clearly in the dark.
Lightweight & Portable: The light weighs only 38g and has an overall length of 12.5cm so you can easily put it in your pocket or lock-box.
Extended Working Time: The rechargeable battery will last up to 24 hours of working time.
Safety Lanyard: You can use the lanyard wrist strap for safety while working in the field.
Wide Temperature Range: Reliable operation between -20°c and +60°c.
Durable Construction: It has a rugged outer shell that will stand up to everyday use as a professional.

Price range: $8.99 through $32.00

Product Model	SGV-5 / SGV-15 / SGV-20 / SGV-30
Product Name	B3 Mini Visual Fault Locator Fiber Tester
Light Source Type	650nm Red Light LED
Output Power	>5mW / >15mW / 20mW / >30mW
Output Wavelength	650nm
Adapter Type	Universal 2.5mm (supports SC, FC, ST connectors)
Replaceable Ceramic Core	7mm ceramic ferrule, easy to replace
Metal Tip Size	2.5mm
Flip Cover Design	Pop-up protective cap, one-touch open
Battery Type	2 x AAA batteries or built-in rechargeable lithium battery
Battery Capacity	3.7V, 600mAh polymer lithium battery
Charging Method	USB charging (adapter, power bank, computer, car charger)
Overcharge Protection	Built-in, automatic power-off when fully charged
Dual Power Supply	Supports both dry batteries and lithium battery
Operating Time	Up to 24 hours
Dimensions	125mm × 35mm × 17mm
Length	12.5cm
Weight	38g
Operating Temperature	-20°C to +60°C
Storage Temperature	-40°C to +85°C
Strong Illumination	Built-in high-brightness LED lamp for dark environments
Portability	Mini, lightweight, pocket-sized
Safety Lanyard	Included for secure field operation
Application	Fiber break detection, continuity testing, end-to-end fiber identification
Material	Durable, robust construction
Easy Maintenance	Simple ceramic core replacement, no tools required
Universal Compatibility	Works with SC, FC, ST fiber connectors
Extended Battery Life	Efficient energy use for long-lasting performance
Package Includes	Visual fault locator, lanyard, user manual, charging cable (if applicable)
Certification	Complies with industry standards