The present invention relates broadly to a wear liner module (10) for equipment in a high wear environment, said module (10) comprising a back plate (12) and a wear liner (11) including one or more tiles (14a) to (14f) formed of wear resistant material, and one or more sensors such as (16a) mounted to the wear resistant tile such as (14a). The wear sensor (16a) is mounted to a perimeter face of the corresponding wear resistant tile (14a). The wear sensor (16a) is electrically coupled to a microprocessor mounted to a rear face of the tile (14a). The microprocessor is configured to process data received from the wear sensor (16a) to provide a wear signal represented of wear in the wear sensor (16a). The microprocessor (24a) transmits the wear signal to a wireless receiver (34a) mounted to the backing plate (12).