You are buying a slightly used Fiber Optic 20GHz High Speed InGaAs Detector in the range of 950-1650 nm including instruction manual on flash-drive.  The detector is coupled to a 50-micrometer multimode fiber to capture maximum input power at the FC input connector.

This item is fully tested and working according manual.  Cosmetically, it is in excellent condition including its wooden carrying case. 

Description:

The 1414-50 High Speed Multimode Fiber-Optic Detector has a flat response in both amplitude and phase up to 20 GHz and are optimized for frequency-domain applications. The high-sensitivity near-IR photodetector uses a 25 μm diameter back-illuminated InGaAs Schottky photodiode with a peak responsivity of 0.5 A/W at 1300 nm. The active layer is twice as thick as in our ultrahigh-speed Model 101X module, producing a 50% greater responsivity over its 950 to 1630 nm wavelength range. The conversion gain with a 50 Ω load is 14 V/W. It has an FC/UPC 50 μm multimode input.

The retail price for this item is currently $5750.

Buyer pays a flat rate of $40 for shipping and handling including shipping insurance $3750 in the continental USA. 

Satisfaction guaranteed, there is a 30 day right of return.  A full refund minus shipping and handling fee if the item is returned in its original condition.  Buyer pays the return costs.