CANchecked BMR01 Wireless Receiver Brake MonitoringTMU and BMU Wireless Multi Channel Infrared Sensors The TMR01 or BMR01 is the dedicated receiver box for the TMU and BMU wireless sensors. When purchasing a TMU04 or BMU04 set, the receiver box is included and does not need to be purchased separately. If purchasing individual TMU01 or BMU01 sensors, a receiver box must be purchased to operate the system. The PSR TMU and BMU are advanced wireless multi channel infrared sensors designed for tire and