You are buying a  Schroeder Hydra Sleuth Flow Tester In good cosmetic condition   Item has not been tested by me but is  Guaranteed not doa.. .Please contact me with any issues before leaving feedback   I do combine shipping on orders so if you purchase more than one item please wait to pay until I have sent a proper invoice. Thanks!   All items ship with delivery confirmation   We accept Paypal as our only payment option... All items ship within 2 business days of payment...Friday/Saturday orders will ship Monday