ThorLabs PM16-120 USB Power Meter PhotoDiode SI 400-1100NM 50mW Max Sensor Detector Type: Large Area Silicon Photodiode. Wavelength Range: 400 - 1100 nm. Max Average Power Density: 20 W/cm². Power Resolution: <1 nW. Optical Power Range: 50 nW - 50 mW. In Good Condition. byJuly 4, 2026