View 2 of 2 Pack Magnetic Reed Switch NO/NC, Wired Surface Mount Door Window Contact Sensor for Security Alarm, Black

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View 1 of 2 Pack Magnetic Reed Switch NO/NC, Wired Surface Mount Door Window Contact Sensor for Security Alarm, BlackView 2 of 2 Pack Magnetic Reed Switch NO/NC, Wired Surface Mount Door Window Contact Sensor for Security Alarm, Black