Practical Magetic Style Alertor Home Doors Windows Security Alarm Device<br /><br />Main Features:<br />? Easily mounted by adhesive tape to window or door<br />? Magnetic sensor switch detects entry protecting your home or office whether your are in or out<br />? Powered by 3 x 1.5V LR44 battery<br />? Transmitting frequency is 315MHz and transmitting distance is 2 meter<br />? The voltage is 1.5V and current is 0.2mA<br /><br />    Specifications<br />General<br />	 Mount Type: Surface-Mount                                                  <br />                        Features: Battery operated                                                	<br />Dimension and Weight<br />	 Product Weight: 0.034 kg                                                  <br />                        Package Weight: 0.114 kg                                                  <br />                        Product Size  ( L x W x H ): 5.3 x 3.5 x 2 cm / 2.08 x 1.38 x 0.79 inches                                                  <br />                        Package Size ( L x W x H ): 13.7 x 9 x 1.5 cm / 5.38 x 3.54 x 0.59 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Magnetic Sensor? 1 x Magnetic Stick? 3 x LR44 Button Battery                                                	<br /><br /><br /><br />                                            <br /><br /><br />                                                <br />