4PCS Home Security Alarms for Window Door 90 dB Sound Loud

• Mini Contact Magnetic Door / Window Sensor Alarm: Door alarm sensor chime (size: 9.6 x 17.4 x 2cm). Door alarm is small size and can be installed or placed at any indoor position to provide you with a door entry chime/alert system
• Home Security System:The Personal Window and Door Alarm provides an easy-to-use, cost-effective security solution to protect you and your family from home intrusions, 90 DB alarm is loud enough to make potential intruders think twice about entering through your door or window
• Multi-purpose Magnetic Contact Door Alarm: Magnetically triggered sounds when children and people with dementia open windows or interior doors. Each window alarm features an open/close/bell switch for easy operation. Perfect for homes, apartments, dorms and offices
• Protect Your Family: The door alarm sensor will detect the door/window, and will be triggered to send out a signal when the door/window opening. This home security door alarm sensor chime when burglar opens door and helps deter break-ins.Keeping kids out of cabinets, above ground pools, alcohol. Monitor wandering, sleepwalking, elderly getting out of bed by themselves to avoid all kinds of dangers
• Easy Installation the Wireless Window and Door EntryAlarm System : Easy to install and operate, press the on/off switch to turn power on/off,peel off the double-sided tape on the backpack, and attach the door handle alarm to your target location

" Door Magnetic Alarm Features: ● Prevents burglars from pushing open doors or windows. ● Can be used to prevent children from leaving or opening dangerous cabinet doors. ● Installation: Magnetic ● Alarm Sound: 90dB ● Uses 2 batteries. Applications: 1. Doors, windows, homes, shops, businesses, and other locations. 2. Computer case alarm for internet cafes. This product is compact and easy to install. The provided double-sided adhesive allows for easy installation on doors or windows. It is an inexpensive, cost-effective, and practical preventative measure. It has been highly praised by residents and police in our area. Simply attach the main and auxiliary components to the door and doorframe, or to two windows, aligning them (leaving a gap of approximately 5mm). If a thief attempts to pry open a door or window, or attempt to steal (the main and auxiliary components are separated), the alarm will sound a loud siren, deterring the thief and alerting the owner and nearby residents to the thief's presence. A switch can be used to control the alarm when you need to open the door or window yourself. It is suitable for anti-theft purposes in residential buildings, offices, store counters, and other locations. Installation Instructions: 1. Secure the main unit to the door/window edge with double-sided tape. 2. Attach the other door sensor strip to the doorframe in a straight line along the main unit's indicator line. 3. To check the settings, turn the main unit switch to the ""ON"" position. 4. Open the door and verify that the alarm siren sounds. You can check whether the installation is successful. Note: 1.Due to manual measurement, the size and weight may have a certain error. 2.Due to the difference between different monitors, there may be a slight color difference existed. "