The Innosonian America OBI Conversion Kit transforms existing standard or basic Brayden adult CPR manikins into fully functioning OBI (Objective Blood Flow Indicator) Advanced or Pro units with red LED visual feedback. This comprehensive retrofit kit includes the updated upper chest skin, main electronic circuit board, and illuminated LED strip assemblies required to upgrade legacy manikins. Designed for cost-effective training equipment modernization, it allows CPR instructors and simulation centers to add real-time blood circulation lighting feedback without purchasing entirely new manikin bases.