Home Door Window Magnetic Sensor Open Security Alarm with 2 Remote Control 105dB Keep your home secure with our Home Door Window Magnetic Sensor Open Security Alarm. This wireless door sensor is designed for easy installation and use, providing a vigilant layer of protection for any entry point in your home or office. The alarm is triggered by a magnetic field disruption, instantly alerting you with a loud 105dB sound that cannot be ignored. The sensor comes with two remote controls for added convenience, allowing you to quickly arm or disarm the alarm from anywhere in the room. Its sleek white ABS design is both durable and discreet, ensuring that your surveillance is both effective and aesthetically pleasing. With a 20m operating range and a quick 200ms response time, you can enjoy the peace of mind that comes with comprehensive security. Excellent working pre owned condition with original box. Works!!