Optical power meter system

S120UV, Standard Power Sensor, Si, 200 - 1100 nm, 50 mW, Thorlabs

Wavelength range: 200-1100 nm
Power range: 50 nW - 50 mW
Detector type: Si Photodiode (UV extended)
Linearity: +-0.5 %
Resolution: 1 nW
Measurement uncertainty: ±3% (451 - 1000 nm) ±5% (200 - 450 nm, 1001 - 1100 nm)