Amcrest SmartHome WiFi Door Alarm System, Wireless DIY Smart Home Security System, with Phone app Alert, 4 Pieces-Kit (PIR Motion Sensor, Door Window Sensor, Alarm Hub), for House, Apartment, (AL-KIT1-PP)
Amazon.com: Koostone Wireless Door Alarm, Door Chime, Fridge Door Alarm with Delay 30sec 70~130dB Reminders, Door Sensor Chime for Business When Entering, 3 Pack : Tools & Home Improvement