Review on Linkind Wireless Smart Home Security System: DIY 5 Pieces With Siren Alarm, PIR Motion Sensor & Door/Window Sensor For Office And Home - Compatible With Alexa by James Martin

I sent this to my daughter who has her first apartment with multiple roommates. She uses it to keep her bedroom area safe. She has to put her cat in the room when she leaves so needed this to make sure no one opens the door and let's him out. There has been some burglaries around her campus town and she feels safer using this alarm system. She said set up was easy and the alarm is loud.