Jonard Tools Fiber Optic Power Meter (-70 to +6 dBm)

Jonard Tools®

Primarily used in long haul applications, this fibre optic power meter is perfect for measuring both the absolute optical power and relative power loss in fibre optic cables with FC/SC/LC adapters.

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Jonard Tools Fiber Optic Power Meter (-70 to +6 dBm)

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Connector Types


Calibrated Wavelengths (nm)

850, 980, 1300, 1310, 1490, 1550, 1625, 1650.

Detector Type


Measurement Range

-70 dBm to +6 dBm.

Single-mode Range

980, 1310, 1490, 1550, 1625, 1650 nm, ≤ ± 0.25 dB.

Multimode Range

850, 1300 nm, ≤ ± 0.8 dB.


0.01 dB.

Operating Time

≥ 130 hours.

Battery Type

(3) AA batteries.


7" x 3.25" x 1.5" (17.78 cm x 8.26 cm x 2.54 cm).


1.5 lb (681 g).

Key Features
  • Power measurement range of -70 dBm to +6 dBm, perfect for long distance or long haul telecom, coax, and fibre optic cables.
  • Measures a wide variety of wavelengths from 800-1650 nm, with a mere 0.01 dB resolution.
  • Measures 6 pre-set calibrated wavelengths with high precision to determine absolute or relative power.
  • Special function of the unit allows the device to be manually calibrated as needed.
  • Includes FC and SC adapters to connect to PC/UPC/APC FC and SC connectors.
  • Also includes an LC adapter to connect to PC/UPC LC connectors.
  • LED screen is backlit for viewing in low light locations and a 10 minute auto-off helps preserve battery life.
  • Dust-proof button design and shatter-resistant sleeve protect the tool to last a lifetime.

Need Help?

Send us a message or contact our team on +44(0)1745 586600 and we will be happy to talk through your requirements.


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