The AP2-20N is a curtain indoor PIR detector with stable and reliable performance. It's compact and discreet design is ideal for protecting large store front windows, hallways, storage units, small entryways, and varieties of other commercial and residential applications. With its high-density detection area and uniform sensitivity, The AP2-20N indoor curtain PIR detector is equipped with OPTEX patented Double Conductive Shielding technology to resist interference from foreign light sources, drastically reducing false alarms. The AP2-20N offers flexible wall or ceiling mounting height of 8ft to 12ft and 20ft of PIR detection range. With its unique and compact design, the AP2-20N is easy to install, reliable, and provides strong, stable, and accurate detection performance. Ideal for protecting large store front windows, hallways, storage units, small entryways, and varieties of other commercial and residential applications. Applications House Garage Key Features 8ft to 12ft mounting height 20ft detection range Wall / ceiling mounting Modern and compact