When the body is near,it will automatically start the alarm,The highest sensitivity in the range of 4-5 meters<br> Put or paste the alarm in a certain height, within 5 meters within the angular range 120 degrees left and right, as long as people or animals, swaying back and forth in a very short time, induction starts.<br> Monitoring and Interception - After turning on, it can be connected by communication tools. And for a few seconds after through, you can hear clearly the situation 15 meters area around.<br> Operation frequency:850MHZ,900MHZ,1800MHZ,1900MHZ<br> Working current: 10mA<br> Idle current: 0.05mA<br> Voltage:AC100-240V<br> Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on.<br> Colour:Black<br> Material:plastic<br> Package Contents:<br> 1 * Mini GSM Motion Sensor<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.