Specifications include, but are not limited to: A. Nine (9) Powered Stair Chairs - all equipment to be new with full factory warranty in place. - each unit must include the following accessories: - battery to power unit (1) - footrest with ankle securing strap (1) - head restraint (1) - upper and lower Carry Handles (1) - patient securing system/strapping (1) B. Dimensional Specifications, Necessary for Ambulance Storage - Folded: (maximums) -Height – 38 inches -Width – 21 inches -Depth – 10 inches -Open/Deployed Dimensions (minimum) -Height – 37 inches -Width – 20 inches -Seat pan width – 19 inches -Seat pan depth – 24 inches C. Functional Specifications - device shall use powered tracks to allow the safe transport of patients up and down stairs without lifting. - device shall use a removable battery to power unit that is capable of quick field replacement without tools - device shall use active braking when powered to prevent track movement when controls are not being activated to move patient - device shall allow for friction movement of the track in the event of a power or control failure -additional specifications: -safe working load – 500 pounds -minimum stair width – 24 inches -maximum slope operation – 11 degrees -maximum pitch of stairs – 45 degrees -smooth track that conforms to stairs -IPX6 rating for use in wet conditions D. Accessories – Please price individually as optional items, listing quantity discounts if applicable - additional battery for powered stair chair - external battery charger, to include North American power cord - internal battery charger if available - replacement ankle strap - replacement head restraint - replacement patient securing system/strapping