Multifunctional optical power meter with VFL

The CableMaster-FO is a multifunctional optical power meter includes visual fault locator for port/polarity detection (VFL/red light), an attenuation meter for determining the attenuation of 7 different wavelengths of the fiber optic signal in dB, a power meter for determining the signal strength in dBm/mW, , a copper patch cord tester for checking wiremap, and a flashlight for dark wiring cabinets. 

Application recommendation:  Use LinkXpert M3 to inject a light source at one end of the fiber, and use CableMaster FO as power meter at the other end of the fiber.


Areas of application
  • Verification of FTTx (fiber to the home, fiber to the office, fiber to the "x") broadband installations
  • Optical power meter mode for measuring the power at different fiber optic interfaces
  • Simple attenuation determination on fiber optic cabling to ensure attenuation budget is met
  • Visual Fault Locator (VFL) for correct polarity of the fiber link and checking for interruptions
  • Use with LinkXpert M3 as a power source
Special characteristics
  • Best price/performance ratio on the market
  • Many functions combined in a very small unit
  • Simple, intuitive operation - ready for immediate use
  • Everything included (battery, charging cable, adapter 2.5/1.25mm)
Your benefit
  • Particularly small, reliable and robust
  • Storage of 50 measurement results and more
  • VFL, torch and patch cord test integrated
  • OPM, attenuation/power display (dBm, dB, mW)
  • Rechargeable battery for operating times of up to 80 hours

Product details


CableMaster FO Scope of delivery:

  • Main unit with integrated remote
  • 3 x AAA NiMH 1.2 V rechargeable batteries
  • 1 x USB charging cable
  • 1 x adapter 2.5 to 1.25 mm
  • Optical power meter in pocket size
Size: 105 x 65 x 25mm
Weight with Battery: 140g
Power Supply: 3 x 1.2V AAA NiMH
Operating temperature: -10 - +50°C
Storage temperature: -20 - +70°C
Humidity: 0% - 95%, non-condensing
Test ports: 1 x Optical Powermeter port 2.5mm / 1 x VFL port 2.5 mm / 1 x RJ45 port
Test range: -70dBm - +10dBm @1550nm
Supported wavelengths: 850/1300/1310/1490/1550/1625/1650nm
Accuracy: ±0.35dB
VFL output power: 0dBm (1mW)

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