Keysight 81530A Optical Power Sensor
Wavelength range: 450 to 1020nm. Power range: +3 to -100dBm. Display resolution: 0.001dB. Display resolution: 0.01pW. Accuracy: ±2.5% (600 to 1020nm)
HP/Agilent Keysight 81530A Optical Power Sensor