• OPM4 Optical Power Meter with Wave ID and Set Reference


    • 5-Year Product Warranty
    • 3-Year Recommended Calibration Interval
    • Wave ID (auto wavelength identification and switching)
    • Power measurements in dBm or ?W; insertion loss in dB
    • 270 Hz, 330 Hz, 1 kHz, 2 kHz Tone detection


    • Passive Optical Networks (PON) testing
    • OPM4-2D (Ge) for Premises LAN/WAN multimode or single-mode networks
    • OPM4-3D (InGaAs) for Telecommunications networks
    • OPM4-4D (Filtered-InGaAs) for high power (+26 dBm) CATV Broadband networks or DWDM system applications


Full-featured, handheld optical power meter

NOYES OPM4 is designed for measuring optical power in all network types and performing insertion loss measurements on multimode or single-mode fibre optic links. The OPM4 is fully N.I.S.T. traceable. 


Automatic Wavelength Identification Significantly Increases Efficiency

The standard Wave ID feature automatically detects and sets the receive wavelength(s), preventing setup and measurement errors (when used with NOYES OLS series light sources). It significantly increases efficiency and reduces technician errors—and saves testing time—by eliminating the need to test each wavelength individually.


Optical References Storage

The OPM4 stores optical references for each calibrated wavelength and offers multiple test tone detection for fibre identification.


Key Specifications


  • Measurement Units: dB, dBm, μW
  • Power: 2 x AA batteries 
  • Battery Life: 300 hours


Calibration Wavelengths

OPM4-1D – 650, 660, 780, 850 nm

OPM4-2D – 850, 1300, 1310, 1490, 1550 nm

OPM4-3D – 850, 1300, 1310, 1550, 1490, 1625 nm

OPM4-4D – 850, 980, 1310, 1550, 1490, 1625 nm 



Ordering Information


OPM4 models 

Four Models provide options to cover all network needs:


OPM4-1D – Silicon (Si) Detector suited for Plastic Optical Fiber (POF): 650 nm to 850 nm

OPM4-2D – Germanium (Ge) Detector suited for Premises (LAN/WAN) multimode networks

OPM4-3D – InGaAs Detector suited for single-mode networks

OPM4-4D – Hi-Power InGaAs Detector suited for CATV and other networks up to +26 dBm


OPM4 Accessories




FC adapter


SC adapter


ST® adapter


LC adapter



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