Infrared Interface Adapter IrDA, includes Power supply (110v) To assure your Printers compatibility sample, e-mail your Make and Model number to our Product Experts at: customerservice@a1cardiology.com We’ll verify the compatibility. Rest assured, our representatives will respect your privacy and only contact you at your request. Availability: Usually ships in 2-3 business days. Schiller Infrared Interface Adapter for Sp-2 Spirometers A12100553$150.00 Copyright 2006-2011, A1cardiology.com