The Noyes OPM4 is a handheld optical power meter engineered for insertion loss measurements and optical power characterization across premises, Telco, and broadband fiber optic networks. N.I.S.T. traceable with ±0.25 dB accuracy, the meter delivers 0.01 dB resolution and automatic wavelength identification (Wave ID) when paired with compatible Noyes light sources—eliminating manual setup errors and accelerating field testing. Optical reference storage by calibrated wavelength, integrated tone detection for fiber identification, and multiple detector options ensure flexibility across multimode, single-mode, POF, and high-power DWDM applications.
Technical Specifications
Optical Performance
• Measurement accuracy: ±0.25 dB (at 25°C, -10 dBm, per N.I.S.T. standards)
• Resolution: 0.01 dB
• Units: dB, dBm, µW
• Operating temperature: -10 to 50°C (90% RH, non-condensing)
• Storage temperature: -30 to 60°C (90% RH, non-condensing)
Detector Options
• Silicon (Si): 650, 660, 780, 850 nm; range +6 to -70 dBm
• Germanium (Ge): 850, 1300, 1310, 1550, 1490 nm; range +6 to -60 dBm
• InGaAs: 850, 1300, 1310, 1550, 1490, 1625 nm; range +6 to -70 dBm
• Filtered InGaAs: 850, 980, 1310, 1480, 1550, 1625 nm; range +26 to -50 dBm (high-power capable)
Power & Battery
• Source: 2 × AA alkaline batteries or optional rechargeable NiMH pack
• Battery life: Approximately 300 hours
• Auto-off: 5-minute timer for power conservation
• Optional AC adapter available
– Key Features
• Automatic wavelength identification prevents configuration errors
• Stored optical references per calibrated wavelength
• Multi-tone detection for fiber circuit identification
• Thread-on style adapter cap interface (ordered separately)
– Typical Applications
• LAN/WAN multimode and single-mode network commissioning
• POF installation testing
• CATV and DWDM system validation up to +26 dBm
• Broadband and Telco fiber plant characterization
– Compatibility & Integration
Wave ID functionality requires compatible Noyes light source. Optical input accepts Noyes thread-on adapter caps.

















