HP 81533B Optical Head Interface Module Tested & Working Compatible with 815xx

HP/Agilent 81531A Optical Power Sensor Module 800–1700 nm for 8153A 223333

4bb HP / Agilent 81531A Power Sensor Module, InGaAs, +3 to -90 dBm, 800-1700 nm

Agilent 81531A Optical Sensor

HP/Agilent 81531A Power Sensor 800-1700nm Module. (5 In-Stock)

HP 81531A InGaAs Optical Power Sensor 800–1700 nm Module for Agilent 8153A

Agilent / HP 81536A Optical Power Sensor Module 800-1700nm Tested & Working

Keysight/Agilent 81633B Optical Power Sensor Module; Working