1/2/4/5/8/10pcs Wireless Window Door Burglar Security Warning Alarm System Magnetic Sensor 90dB

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Descriptions:

1.100% Brand New and High Quality 2.Magnetic sensor switch detects entry 3.Ideal guardian against the unwanted intruder whether you are in or out, keep yourself and your property safe and security 4.Easily attach the main sensor on the doorwindow and attach the stick adjacent the main sensor on the doorwindow frame with the adhesive tape included 5.Handy ONOFF switch: in the state of \ON\, the sensor will emit the alarm signal as long as someone opens your door or window 6.Super loud 90 dB alarm 7.Powered by 3*1.5V button cell 8. Loudness:90db Features: Easily mounted by adhesive tape to window or door. Magnetic sensor switch detects entry protecting your home or office whether you are in or out. Warning doorwindow sticker is supplied free in package. Operating by 3 pcs.1.5V button cell. Specifications: 1. Sensor type: alarm 2. Alarm type: sound 3. Material: plastic 4. Color: White 5. Size: 2.5 x 1.3 x 0.8 inch Operating instructions: 1.Use the double-side adhesive tape to fix the main unit at the side of the doorwindow.Attach the bar magnet to door framewindow frame with the arrow aligning with the refrence line of the main unit. 2.Test the setup by swithing the system's switch to ''ON'' position of the main unit and see whether the alarm can be triggered by opening the doorwindow. Thanks and welcome you to visit next time

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