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Fiber Checker Pro II with 2.5mm to 1.25mm Adapter

SKU: TL4-4568
Various lead times may apply to this product. Please contact us for more details.

This fiber optic cable tester comes with the optional 2.5mm to 1.25mm adapter.


Fiber Checker Pro II with Adapters

Fiber Checker Pro II is used during installation and repair to find faults, checking continuity, verifying signal path and identifying fiber. It tests single mode, multimode and plastic fibers. It has the capacity to test fiber cables ranging 0~5km. Fiber Checker Pro II emits a bright red light that can easily locate a fiber fault or a loss point. When testing for continuity, it simply discloses the fiber cable being tested from a bundle of fiber cables. Alternatively, a fiber routs can be confirmed by bending a patch lead for the red light leaks out of the patch lead.

Alternatively, a fiber route can be confirmed by bending a patch cord for the red light to expose out of the patch cord. The universal connector adapter is suitable for 1.25mm or 2.5mm fiber optic connectors, and with its ceramic alignment sleeve, it ensures durable operation. Now with waterproof design and its high quality material, the Fiber Checker Pro II can withstand dust, humidity, and immersion in 1m of water.


  • Dust-proof and water-proof design
  • Durable water™proof and drop resistant construction
  • Wavelength: 650nm
  • Range: Visibility up to 5km
  • Easy to check fiber faults with visual red laser light
  • Universally Connector for test different interfaces: ST, SC, FC, FDDA
  • Tests both single-mode and multi-mode cables (optional 2.5mm fiber optic connectors to 1.25mm adapter)
  • Highly effective power circuits for stable laser power
  • Operates in both CW (Continuous Wave) and PM (Pulse Mode)
  • Use two alkaline AAA battery


Fiber Checker Pro II

Wavelength 650nm ± 10nm @ 25ºC
Spectral Width <10nm
Output Power >1mW @ 25ºC into 9/125um single™mode fiber
Mode CW/Pulse
Battery type 2 x Alkaline AAA 1.5V
Output Power Reliable ™0.2 mW
Range Visability to 5km
Operating Temperature 0ºC to 50ºC
Storage Temperature 0ºC to 70ºC

What's In The Box

  • Qty 1 - Fiber Checker Pro II with 2.5mm to 1.25mm Adapter