PIR detector for use in alarm systems. Wide angle lens covers area up 40ft X 40ft (90deg. horizontal Spread) 3 zone vertical pattern at -5deg, -15 deg. & -35 deg. below horizontal. Internal terminal strip for 12V/15mA DC power (9-16VDC), NC alarm contacts & tamper switch. Selectable 1-2 pulse count. Internal red "walk" LED can be disabled. White Plastic case. indoor use.