【Product Features】
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New and high quality
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Convenience in installation--just peel and stick
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Super environmental suitability and stability
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Dustproof and insect preventionEasily mounted by adhesive.
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Type to window or door.Magnetic sensor switch detects entry protecting your home or officeWarning door / window sticker is supplied free in package
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Operated by 3pcs LR44 button Batteries
【Product Specifications】
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Sensor type: alarm
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Alarm type: 120dB alarm sound
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Material: plastic
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Color: Black silverSize:2.9x1.5inch