The ALC-PI-BT-WH is an In-wall PIR sensor designed to work with the ARISTA Lighting Controls System by Intermatic and will control lighting based upon occupancy/vacancy. If space is configured for occupancy and movement is detected, the sensor informs the ARISTA controller(s) in the space and the lights will illuminate. The lights will turn off after the ARISTA sensor(s) deem the space vacant and the timeout period expires. If space is configured for vacancy, the ARISTA controller'(s) in the space will only react when manually activated. The lights will turn off after the ALC-PI-BT-WH deems the space vacant and the timeout period expires. Pricing Available Upon Request.