Takex, PA-6805, 13' Diameter Spot Protection, Dual Element, up to 16' Ceiling, "Snap In Base", N/O N/C - Selectable, 10.5 to 28VDC
Separate base & sensor head, Pulse Count & Sensitivity adjustment, Silent N/O or N/C selectable output, Tamper Circuit, LED on/off, Alarm Memory, 9V to 18VDC.
For more information, please see
Data Sheet