ITEM NAME:Wireless Magnetic Sensor Door Window Entry Safety Security Burglar Alarm Bell LJ Wireless Magnetic Sensor Door Window Entry Safety Security Burglar Alarm Bell LJ a.imagelink a:hover.imagelink {color:#60000;.1x Door / Window Wireless Burglar Alarm. Use double-sided adhesive to the host fixed the door / window, 2. Check settings, put the host switch to "ON" position. Open the door to see whether to issue the alarm siren.
