GRSICO Alarm System for Home Security, Wireless Home Security System 5-Piece kit with Wi-Fi Gateway, Door/Window Sensors, APP Alert for Home Garage Apartment Office

GRSICO HOME SECURITY SYSTEM: The great home alarm system includes 1 Wi-Fi Gateway and 4 door/window sensors. Only work on 2.4GHz WiFi. (NOT SUPPORT 5G)
Easily DIY Installation: Set up the alarm system in minutes all do it yourself making home security easier. Just need to attach the contact sensors to door/window.
No Alarm Sound: When a sensor is triggered, you’ll get an alarm alert from the mobile app, and by renaming it you’ll know where it was opened. The gateway and door/window sensor won’t make any annoying noise, and there will be no false alarm sound to disturb your sleep at night.