Mi Smart Home Battery operated ZigBee window door sensor for MI Smart Home system
5X Bluetooth Smart WiFi Water Leak Sensor APP Flood Leakage Level Alarm Detector | eBay
Aqara Motion Sensor P1, Requires AQARA HUB, 5-Year Battery Life, Configurable Detection Timeout, for Alert System and Automations, Compatible with HomeKit, Alexa, IFTTT - Amazon.com
WIFI Wireless Smart Magnetic Door Window Sensor Detector Alarm For Google Home - Walmart.com
Amazon.com: Xiaomi MI Motion Activated Night Light 2 - Bluetooth, 2800K Warm Yellow Light, No Visible Flicker, No Harmful Blue Light, 3× AA Batteries Last Over a Year : Tools & Home Improvement