Machine health monitoring is of critical importance to its safe and reliable operation. The emergence of wireless data transmission techniques has extended the Scope of health monitoring to machine components and systems that are difficult to accessor not suited for wired sensor data acquisition .this paper presents the design and prototype realization of a digital wireless data transmitter based on the CDMA technique.The design provides a generic solution for various applications in electronic instrumentation measurement and embedded sensing for machine condition monitoring and health diagnosis. A compact, low power digital wireless data transmitter based on CDMA coding technique has been designed, simulated, prototyped and experimentally tested .The design demonstrates the feasibility of employing a sophisticated transmission scheme in an embedded sensor for machine health monitoring. Focusing on constraints and power efficiency during the design phase.