The Pearl sensor is an outdoor detector, that uses PIR, anti-masking and microwave sensors for triple detection. The detector will aid to protect properties against crime with its invisible curtain. The Pearl can be positioned to look across windows, doors or the entire length of the house or property wall. The Pearl detector is supplied with a "T" bracket for narrow beam applications protecting across a door or window. An additional swivel bracket can be purchased for applications that require a customizable pan and tilt angle.