Extra Transducer for FD2 MD2 SD2 & D900 3mhz Emergency First Aid Products 5v Otoscope with built in throat MSHQ 1594XL 5v Otoscope with built in throat illuminator gives you two instruments in one with halogen illumination and fiber optics for cool light * Adjustable rheostat to control light intensity * Powered by 4 AA batteries (included) * Foam base may be wiped with damp cloth * Neoprene rubber cushion insert can be patched or repaired to extend use * Customized Jay foam base and ROHO air insert are fluid resistant * Cushion size: 20 W x 18 D * Wide ranges of sizes also available to fit chair widths 14 to 24 upon request * Weight capacity: 550 lbs * HCPCS Suggested Code: E2622 * 2 year warranty Transducers for fetal dopplers * For vascular use (the lower the transducer number the deeper it will read)