Why Choose This:★Wide Application: This door alarm sensor is widely used in home security systems, providing reliable protection for door and window.★Powerful a-lert Sound: With a piercing 125dB sound output, this door alarm ensures that any unauthorized entry or door opening is immediately detected and a-lerted.★Enhanced Home Security: Our door alarm sensor provides an effective deterrent against intruders, helping to protect your home and loved ones.★Sound Intensity: 125dB; Power Source: LR44*3 (included); Installation Distance:.
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