Intelligent Password Door And Window Alarm Electronic Door And Window Alarm

Specification:
Color: White Material: Plastic ABS Power by: 3* battery aa (not included) Operation voltage: dc 4.5v Sound level of alarm: 105db
Instruciton:
-The magnetic sensor can detect the opening of doors or windows and signal the main unit. So the main unit gets the signal and emits the sound of the alarm. -Enter the secret number followed 35; 35; led will be illuminated for ten seconds that indicate that detection will be available. -So if we go in again, the led will signal that detection is cancelled. -When you detect the door opening signal, it will give off soft DI-DI-sound sound sound for 20 seconds then alarm. During this time, you can stop the alarm by entering the secret number followed by 35; 35;. -How to change the secret number -When you put the battery in the main unit, the initial secret number is 0000. -Then you enter the old number 0000, you will hear a long beep and it tells you that you enter a correct old number. Now you can enter a number of 1-12 digits followed by then you will hear a long sound again indicating that you have entered a new number. -How to make the alarm sound at the same time -When in emergency, we can press the panic red button, it will alarm at once per 1 minute. -We can enter the secret number followed by 35; to stop the alarm.
Package Includes:
1 x Coded Door And Window Alarm (not included battery)
Note:
-Allow differences between 0.5 and 1cm due to manual measurement. -Due to the difference in light and screen, the color of the item may be slightly different from the images.