Check the listing for details. PHILLIPS 21221b Doppler 1.9 MHz Transducer. Condition: Used. Listed at 250.00 USD. PHILLIPS 2122Ib Doppler 1.9 MHz Transducer * works with GE Vivid 7Call Med Pro Shop Today for more details(954) 482-2061 Any Returns need to be Authorized by Seller with and RMA # Or you will not get a Credit for your Return. Buyer Pays for any and all returns to Seller. Buyer has a 30 Day warranty on Equipment purchased. After 30 Days NO RETURNS ACCEPTED AT ALL If Item is damaged when received Buyer must contact Seller Within 24 hours to report a claim on the Shipping company. "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 of the item."