The RM-6 Series sensor was specifically designed to recess mount into linear High Bay fluorescent fixtures using standard 4 x 4 junction box spacing and is ideal for high mounting applications (15 - 45 feet). Above 15 feet, the RM-6 provides Passive Infrared (PIR) detection in a 30 to 40 foot diameter area, making it perfect for warehouses or gymnasiums where the sensors are mounted on a 30 to 40 foot grid pattern. Multiple sensors may be used together to provide coverage as needed. If any one sensor detects occupants, all the lights will turn On. In Racquetball Courts, it is preferred to locate the sensor near the entrance (furthest from the wall). For lower mounting applications, refer to RM-9 or RM-10 Technical Datasheets. CONTROLLING HID BI-LEVEL LIGHTING. In Gymnasiums or Warehouses where control of HID Bi-Level Lighting is desired, the RM-6 is used with a PP-20-SH Power Pack. This Power Pack provides for a Start-to-High Timer, which brings the lamps to full On for up to 20 minutes upon initial power up. The Power Pack must be on the same power circuit as the fixtures to sense the initial power on condition. Some Electronic HID fixtures have this Start-to-High feature built in.