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The first time, in order to ensure plenty of battery power, please use the charger for lead 9V/300MA sexual battery charge, charging time for 3 TO 4 hours is better.

1.On the back of the siren,the button "START" means battery switch.Plug the adaptor,then turn on the switch, and the siren can begin to charge

2.“LEARN” means the learning code button.

When the system under disarm status,press"Learn" button once, LED (learning  LED)lights on all the time,means it enters learning status.Then trigger any sensor,LED will flashes,means learning successfully,and later it will automatically exit learning status.In this way,you can learn many sensors.

Clear up the sensors :  Hold LEARN button for 15 seconds,you can clear up all the sensors you have learned.

3.Siren alarm time: 1-8 mins optional. Factory default time:1 min.

Pull up the button"1"on the board,then the siren alarm time will be 2 mins, then pull up the button "2"on the board,then siren alarm time will be 4mins

When pull up all buttons "1, 2,3,4” ,then siren alarm time will be 8 mins. Customers can adjust the alarm time according to their requirements.