PA-5325 82ft Long range vertical curtain Wall or Ceiling mount! Seperate base and sensor head, Adjustible Mirror optic QUAD with Aiming LED, Pulse Count & Sensitivity adjustment with Slight Motion Detection, N/O or N/C selectable output, Alarm Contact Check Feature with troupble output, Tamper Circuit, LED on/off, Alarm Memory, 9.5V to 30 VDC