The Fiber Optic Visual Fault Locator (Fiber Checker) 10mW is a practical tool for anyone who needs to quickly and reliably test fiber optic installations. Whether for initial installation, troubleshooting, or maintenance – the integrated red light source makes breaks, bends, and faults immediately visible.
The principle is simple: inject light – detect faults. Especially with singlemode and multimode connections, this saves a lot of time when identifying issues or tracing cables. The “end-to-end” test is particularly useful during fiber patching.
Thanks to the universal adapters (2.5 mm and 1.25 mm), the tester is directly compatible with common connector types such as LC, SC, ST, FC, LSH and DIN. No hassle, no additional accessories required.
The robust aluminum housing is designed for use on construction sites or in technical environments. With a range of up to 10 km and an operating time of up to 40 hours, the device is reliable for extended use.
Technical Data:
- Output power: 10 mW (max. 18 mW)
- Wavelength: 650 ±20 nm
- Range: up to 10 km
- Adapters: 2.5 mm & 1.25 mm (LC, SC, ST, FC, LSH, DIN)
- Power supply: 2x AA batteries (not included)
- Operating time: up to 40 hours
- Laser class: 1
- Material: aluminum housing
- Color: black
- Dimensions: 175 x 30 x 30 mm
- Weight: 0.11 kg
Applications:
Ideal for technicians, installers, and IT environments where fiber optic connections must work reliably:
- Troubleshooting fiber optic connections
- Detection of cable breaks and bends
- Identification and tracing of fiber lines
- Patching and installation work
- Maintenance of network and FTTH systems
Scope of Delivery:
- 1x Fiber Optic Visual Fault Locator (Fiber Checker) 10mW
- Nylon pouch with belt attachment
2direct GmbH, Langenstück 5, 58579 Schalksmühle, Nordrhein-Westfalen, Deutschland, info@2direct.de

