Douglas Lighting Controls BTMRDRA BTM-RDR-A is a commercial lighting controller module that communicates with other devices in the lighting control system using Bluetooth meshing technology. A Doppler field disturbance sensor detects motion for occupancy. Discussion and FAQ

Douglas Lighting Controls, Inc. BTM-RDR-A is a commercial lighting controller module that communicates with other devices in the lighting control system using Bluetooth meshing technology. A Doppler field disturbance sensor detects motion for occupancy.