Check the listing for details. STANFORD RESEARCH SYSTEMS SR530 LOCK-IN AMPLIFIER. Condition: For parts or not working. Listed at 550.00 USD. Up for sale is a used STANFORD RESEARCH SYSTEMS SR530 LOCK-IN AMPLIFIER as can be seen in the pictures. We're selling this for parts/repair since we've tested it for power on ONLY, so please bid accordingly. PLEASE MAKE SURE YOU KNOW WHAT YOU ARE BIDDING ON BEFORE PLACING A BID OR ASK FOR MORE DETAILS! Canadian buyers will have to add the appropriate GST/HST on purchase price. If you are in Alaska, Hawaii, Puerto Rico or have a PO Box and want a shipping rate, please contact us as we can ship to you but it will cost more. International Buyers - Please Note:Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility.Customs fees are normally charged by the shipping company or collected when you pick the item up. These fees are not additional shipping charges.