iMeshbean® Wireless GSM PSTN PIR Home Security Alarm Burglar System Auto Dialing DIY USA (5 PCS

his item is designed to work with your security systems, this battery-operated motion detector vigilantly stands guard looking for activity.<br>Operating Frequency: 433 MHz;<br>Detecting distance: 10m; Detecting angle:110 degrees<br>Power: 9V Heavy Duty Battery<br>Package: 5 X PIR Infrared Detector; 5 X Wall Mount ki