Alarm is triggered when the door sensor and remote control are separate, and alarm stops when the two parts are combined.<br />Owner can enter or exit the door freely by the remote control.<br />Uses the sensor of reed switch. <br />Technology of wireless remote control  <br />Remote control with keyring for easy carrying.<br />Alarm with ON/OFF switch, and remote control with Alarm and Disarm buttons for easy operation.<br />105dB alarm sound.<br />A good choice for guard against thefts in house, cars, etc.    <br />Material: ABS<br />Color: white <br /><br />Specifications:<br />Door sensor: 85mm x 42mm x 17mm (LxWxH) <br />Magnet strip: 45mm x 10mm x 14mm (LxWxH) <br />Remote control: 60mm x 30mm x 11mm (LxWxH) <br /><br />Door sensor parameters:<br />Operating voltage: 3V AAA x 2 (not included) <br />Standby current: 100μA <br />Alarm current: 30mA <br />Working frequency: 433MHZ<br />Alarm response time: 200MS <br />Static standby time: 8-12 months, related to the nature and quality of battery  <br /><br />Remote control parameters: <br />Operating voltage: 12V 27A x 1  <br />Working frequency: 433MHZ <br />Standby current: 1μA <br />Working current: 15MA <br />Static standby time: 8-24 months, related to the nature and quality of battery   <br />Remote distance: 20 meters <br />Working temperature: -10 °C ~ 60 °C<br />Operating humidity: < 80%<br />Storage temperature: -20 °C ~ 70 °C <br />3 x Alarm sensor <br />1 x Remote control <br />3 x Magnetic strip <br />1 x English manual <br />In paper box<br /><img src="http://img6.eachbuyer.com/x9/p100/eb4102_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4102_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4102_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4102_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4102_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4102_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4118_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4118_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4118_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4118_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4118_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4122_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4122_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4122_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4122_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb4122_6.jpg" />