Jonard Tools FLS-50 Testing Device

Get reliable single‑mode fiber testing in the field with the Jonard Tools FLS-50 testing device. This compact fiber optic tester provides stable 1310 nm and 1550 nm wavelengths and four modulation outputs (CW, 270 Hz, 1 kHz, 2 kHz), so installers and technicians can quickly verify links, trace fibers and isolate faults during network, security and surveillance deployments. The FLS-50’s consistent output power minimizes measurement variance, improving the accuracy of loss tests for enterprise networking and monitoring systems. Built for real-world use, it includes a shatter‑resistant sleeve to protect the light source from drops, a flush button design to keep dust out, and a backlit LCD for clear readings in dim equipment rooms or outdoor enclosures. Powered by three AA batteries, the unit delivers dependable runtime for extended jobs without bulky chargers. Ideal for CCTV, access control, data center and telecom installations, the Jonard Tools FLS-50 speeds troubleshooting and helps maintain reliable connections across critical security and networking infrastructures. Add the FLS-50 to your toolkit for faster, more accurate fiber testing on every job.

• Deliver consistent, repeatable 1310/1550 nm output for accurate single‑mode loss testing, reducing retests and downtime
• Four selectable modulation tones (CW, 270 Hz, 1 kHz, 2 kHz) to quickly identify and trace fibers during installation and maintenance
• Rugged, field-ready design with shatter‑resistant sleeve and flush button to prevent dust ingress and withstand drops
• Backlit LCD and AA battery operation for reliable use in dark or remote security, surveillance, and networking environments
• Compact, ergonomic form factor that fits technician toolkits for faster diagnostics on site