This rechargeable fiber-optic red-light test pen produces a bright, visible red laser beam for fiber network troubleshooting and visual fault location. Ideal for inspecting fiber links, detecting breaks, sharp bends, or poor splices by transmitting a visible beam through fiber cores during fiber testing and installation workflows.
Available in three output power levels — 15 mW, 50 mW, and 100 mW — to meet different testing requirements. The pen’s compact design fits comfortably in the hand and supports rechargeable operation for repeated use in field applications.
Comes with a 2.5 mm interface suitable for FC/SC/ST type connectors; LC (1.25 mm) connectors require a suitable adapter or patch cord. Emitts red laser using a 650 nm wavelength.
This fiber-optic test pen is suitable for fiber installation, inspection, troubleshooting, maintenance, and general fiber continuity checks, providing a reliable red-light indication along the fiber path.
Key Features
- Visible red light laser source for visual fiber inspection and fault identification.
- Rechargeable handheld design for field use.
- Three output powers are available: 15 mW, 50 mW, and 100 mW.
- Lightweight, pen-style portable tester.
- For fiber installation, inspection and troubleshooting
📊 Technical Specifications
| Attribute | Value |
|---|---|
| Product Type | Fiber Optic Red Light Test Pen |
| Light Source | Visible Red Laser |
| Light type | Steady or flicker, user selectable |
| Output Wavelength | 65nm |
| Universal Interface | 2.5mm (FC/SC/ST) |
| Output Power Options | 15 mW, 50 mW, 100 mW |
| Power Source | Rechargeable battery |
| Battery Type | Rechargeable Li-ion (18650) |
| Usage | Visual fiber testing and fault locating |
| Portability | Handheld / pen form factor |
| Product Weight | 0.22kg (with battery) |
| Product dimension | 150 mm length, 25 mm diameter |
| Package size/weight | 166 mm x 30 mm x 60mm / 0.3 kg |
| Primary Application | Fiber installation, inspection, and troubleshooting |















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