Check the listing for details. Topcon Auto-Refractometer Auto-Refractor RM-A2000! Powers Up & Knobs works. Condition: For parts or not working. Listed at 700.00 USD. Topcon Auto-Refractometer Auto-Refractor RM-A2000! Unit powers up, and all knobs moves freely, smoothly and efficiently as intended. However, refraction is a bit spurious.Therefore selling for parts, as not working. sold as it is. No claims made. No warranty. Return not accepted. Please see photos-what you see is what you get. We are happy to answer any questions. We are your Ophthalmic and Barco Displays Headquarters- Check out our other items We welcome your questions, and enquiries. The following information is provided to comply with eBay's Medical Devices Policy. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping the item.These devices have been cleaned and handled in accordance with the manufacturers published guidelines and instructions. These products are located at:Eyye Don Medical InstrumentsKeller, TX 76244