uxcell 5pcs HC-34A NC Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch White
uxcell
Door Window Alarm, Burglar Alarm, Home Security Wireless Magnetic Sensor Anti-Theft Alarm (Home Alarm (12 pcs))
AiBest
Mengshen Door and Window Alarm - Wireless Burglar Alarm with 105db Loud Sound and Bright Light, Easy to Install (Includes 1 Alarm and 1 Remote Control)
Mengshen
2 Pack Wireless Door Window Alarm, Magnetic Burglar Alert Sensor, Loud Door Alarms for Kids Safety, DIY for Home Security, Office Protection,Shopping Store AAA Battery
Dogxiong