Abstract: A security device and method receives gas pressure signals from a pair of gas pressure sensors, one set at the inside and the other at the outside of a door or a window. Gas pressure values for the signals (of the indoor and outdoor environments) are obtained and a camera, working in the same location as the pair of sensors, is controlled to capture photos or videos when it is determined that the gas pressure values of both sensors have changed and magnitude of the changes are both within a preset gas pressure range. Photos and videos are captured by the camera and transmitted to at least one validated contact according to preset contact information.

Abstract: A security device and method receives gas pressure signals from a pair of gas pressure sensors, one set at the inside and the other at the outside of a door or a window. Gas pressure values for the signals (of the indoor and outdoor environments) are obtained and a camera, working in the same location as the pair of sensors, is controlled to capture photos or videos when it is determined that the gas pressure values of both sensors have changed and magnitude of the changes are both within a preset gas pressure range. Photos and videos are captured by the camera and transmitted to at least one validated contact according to preset contact information.