tolviviov Home Alarm System(3rd Gen), 4pack 120dB Alarm Door/Window Sensors with a Gateway, Smart Home Alarm Security System DIY, No Monthly Fee, Phone Alert, for House Apartment Office

Door Window Alarm with APP Alerts - 5 Pack - with delay Alarm Sensor, Instant Alarm sensors, Wireless WiFi Window and Door Alarms for Home Security, Kids Safety, and More, by tolviviov

Blink Video Doorbell (newest model), Two-way audio, HD video, motion and chime app alerts and Alexa enabled — wired or wire-free (Black)

Blink Mini - Compact indoor plug-in smart security camera, 1080p HD video, night vision, motion detection, two-way audio, easy set up, Works with Alexa – 2 cameras (White)