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At a glance
- Condition
- New
- Model
- FLS-50S
- Weight
- 8.8 oz
Features 5
- DUAL-WAVELENGTH FIBER MEASUREMENT: Delivers stable output power at 1310 nm and 1550 nm for reliable single mode fiber loss and continuity measurements from one compact instrument
- UNIVERSAL ADAPTER COMPATIBILITY: Connects to FC, SC, and LC connectors via included FC, SC, and FC-LC adapters, supporting both UPC and PC connector types without extra hardware
- 4 MODULATION OUTPUT MODES: Supports CW, 270 Hz, 1 kHz, and 2 kHz modulation at both wavelengths for precise tone identification and fault location across fiber test scenarios
- BUILT-IN RJ45 NETWORK CABLE TESTER: Tests RJ45 connectorized cables using the included remote, serving as a dual-function instrument for both fiber and copper cable verification
- FIELD-READY FOR LOW-LIGHT LOCATIONS: Backlit LED screen ensures clear readings in dimly lit spaces, while 10-minute auto-off preserves battery life during extended field jobs. Comes with 2 AAA batteries
Description
When you're working a fiber run or verifying a structured cabling installation, carrying multiple test instruments slows you down. The Jonard Tools FLS-50S puts a calibrated single mode optical light source and a network cable tester into one pocket-sized unit, so you can move between fiber and copper verification without swapping tools.The FLS-50S generates stable output at 1310 nm and 1550 nm — the two standard wavelengths for single mode fiber characterization — and pairs with any optical power meter to complete a loss measurement set. The four modulation modes give you continuous wave output for standard insertion loss testing and three tone frequencies (270 Hz, 1 kHz, and 2 kHz) for signal identification and fault location when working alongside other technicians. The built-in RJ45 tester uses an included remote to verify pin-to-pin continuity on network cables independently of the fiber functions.The FLS-50S is built for fiber and network technicians who need a dependable, portable test source during single mode fiber deployment, outside plant maintenance, or structured cabling work. Its compact size makes it easy to carry in a tool bag alongside an optical power meter or other field test equipment.The FLS-50S ships with FC, SC, and FC-LC adapters already included, so it connects to UPC and PC fiber connectors right out of the box with no additional adapter purchases required. The backlit display and auto-off timer round out a design built for everyday field use.
Specs 4
| Package Dimensions | 5.46 x 3.64 x 3.19 inches |
|---|---|
| Item Weight | 8.8 ounces |
| Manufacturer | Jonard Tools |
| Item model number | FLS-50S |
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Frequently asked questions
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