1. If your alarm does not have a remote control, please take out the battery of the alarm, wait for 2 min, then put the battery in; long press the pairing button of the remote control, about 10 sec, and release it when you hear the alarm's indicator tone. 2. If your alarm needs to add a remote control to control, please first find a remote control of this alarm, long press the pairing button , about 10 sec, press the lock button of the new remote control. At this time, the new remote control can control all the alarms controlled by the old remote control. 3. If you have 2 alarms and 1 remote control, and the remote control can only control one of the alarms. This can refer to the first point of the pairing method. 4.Low power consumption, high-quality process, an easy way to protect your home and family. One remote can be paired with up to 8 alarms, so you can control multiple alarms with only one remote. One alarm also can be paired with multiple remotes. 5.Immediately alarm while thief pushing the door or window. Response in 200ms.