HP Agilent 8163B Optical 81689A Tunable Laser 81635A Sensor 1550nm Cal'd Cert

Fully calibrated with cert and sticker

Meets power spec completely on both of the channels of the dual ch power meter/sensor

It performs beautifully at the full range  with excellent accuracy as shown from lowest to highest point maintaining a solid accurate power output , if you need pics with the OSA spectrum analyzer just let us know, they're coming soon regardless!

Both sensor channels are reading identically and meets spec in dynamic range, signal quality etc...

The mainframe is in excellent shape as you can see with a very bright LCD,  we refurbish these like clean behind the keypad to make it easy to press the buttons and swap LCD backlights as needed,

This tunes to the limits shown centering at 1550nm,