DESIGNED FOR TECHS - The Visual Fault Locator or VFL fiber tester is essential for fiber optic technicians, using a fiber laser to emit bright red light that helps detect faults like breaks and bends in cables and fiber patch cords. Easily connect fiber optic patches and plug in to optical panels. 2.5mm head works with any 9/125um, single mode, multimode, APC or UPC cable. Bonus 1.25mm LC adaptor included. Perfect for techs or electrician tools set. The Fiber Laser pen ensures effective maintenance of optical networks like FTTH FTTX or FTTN and more! RECHARGEABLE VFL - Save money with a 1800mAh lithium ion battery and never look or replace batteries again. Offering up to 40 hours of standby and can be used while charging. LED battery monitor and USB-C charging. Ideal for techs and fiber testers who use fiber optic light meters or in any situation where optical cables or network ports need to be identified or breaks in fiber lines need to be seen. Add the VFL fiber optic light source to you fiber tester tool kit. LED FLASHLIGHT - CONSTANT & PULSING LASER MODE - Featuring an LED flashlight and two laser modes: constant and flashing. Easily inspect patch panel ports in hard to see locations like tech hubs, network centers, and data centers. Sysoteks redlight pen can identify faults in both single mode and multimode fiber. Essential for fiber optic cables and Ethernet connections. Versatile design makes it a must-have to any set of electrical tools or fiber optic testing equipment. DURABLE & PORTABLE - Durable metal construction designed for commercial use. Compact & lightweight tool is perfect for telecom or electrical and fiber splicing professionals, easily fitting into your pocket or network tool kit. Superior to others, it complements OTDRs, power meters, fusion splicers, fiber splicer & strippers and fusion splicing tools. Essential for accurate fiber optic light meter readings and working seamlessly with fiber cleavers identifying proper cuts or misaligned splices. SAFETY & COMPLIANCE - Class I 1mW laser - Compliant with work, health, and safety authorities. Sysotek designed this VFL pen with case to ensure you meet all job site regulations. The legal power limit provides a bright red light while keeping you, others, and fiber optic equipment safe. Ideal for pinpointing faults in optic cables. Our VFL fiber light is a must-have tool for any technician's toolkit. Class 1, 1mW is the industry standard for a reason. Be compliant, be safe! Sysotek’s 1mW visual fault locator fiber optic cable is an essential tool. As a fiber light tester and bonus fiber optic flashlight, it emits a powerful red lazer, detecting breaks in cables and connectors. The sc fiber tester and lc fiber tester supports SC, ST, FC APC & UPC. Designed for use with fiber optic installation tools and fiber optics tools, it significantly enhances fiber optic network maintenance. The compact mini fiber laser improves precision, while the fiber test light, fiber tester light, or fiber light source offer clear visibility. A long-lasting rechargeable battery with USB Type-C charging ensures extended use for every job. The included fiber light meter, light meter fiber optic, or fiber optic cable tester provide accurate readings in various environments. Ideal for fiber optic tools kit and optical fiber tools, this fiber light pen and optic pen are indispensable for any technician. The fiber fault locator is rechargeable. The fiber optic fault tester provides added convenience, while the fiber visual fault locator fiber optic tester and VFL fiber optic features guarantee effective troubleshooting.