Detection the Optex LX-802N is specifically designed to withstand the rigors of outdoor use while providing superior. The sturdy unit housing provides excellent protection from the elements, including, insects, dust and water. The interior design of the LX-802N simplifies wiring the unit and makes for a tight seal, while the attractive exterior design matches most residential decor. The LX-802N provides a high degree of flexibility to meet your specific application. Selectable face detection patterns allow you to avoid false pet alarms, sensitivity and a day/night mode switch allows you to adjust according to the brightness of the environment The device is used in.