WiFi Door Alarm System, Wireless DIY Smart Home Security System, with Phone APP Alert, 8 Pieces-Kit (Alarm Siren, Door Window Sensor, Remote), Work with Alexa, for House, Apartment, Alpha by tolviviov

✅ALPHA WIRELESS SECURITY SYSTEM – A smart way to protect your house with tolviviov Smart Home Security System. 8-piece kit includes the 1 alarm siren station, 5 windows & door sensors and 2 remote controls. No contracts and No subscription fee.
✅SMART ALARM SYSTEM for Home – tolviviov Alarm Security System is an affordable solution for your apartment security. You have full control over the door alarms for home security through your smartphone and get instant notifications of alarms alert in your house or apartment.
✅CUSTOMIZATION – You can add extra door and window sensors, motion detectors, wireless doorbell, and water detectors to different rooms in your home security systems;It supports expansion of up to 20 sensors and 5 remote controls/keypads, which can be added to the WiFi alarm station.