Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Thorlabs
The Thorlabs 2DSI-ER is a Two-Dimensional Spectral Shearing Interferometer operating within a 650 to 1100 nm wavelength range. This product reached its discontinued lifecycle status on February 12, 2014. Submit the exact part number, quantity, and application requirements to request a quote for remaining inventory.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs 2DSI-ER. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.