Basement Watchdog Battery-Operated Water Alarm Sump Accessory BWD-HWA - The Home Depot
Pack of 6 Security Window Door Alarm DIY Home Protection Burglar Alert Sensor !! - Walmart.com
WBM SMART WiFi Door Sensor, Window Alarm Sensor, Wireless Security Alarm, Compatible With Alexa, App Control HD-DS-01 - The Home Depot
Simple Door Alarm Sensor w/ Portable Alarm Alert | Alzheimer's, Dementia and Elderly Door Alarm Kit | Motion Sensor Option | Alert Call Button | Expandable | Alzstore
Motion Detector Alarms | Best Outdoor Motion Sensor Alarm | The Home Security Superstore
SMPL Sensor and Monitor Add-On | Alzheimer's, Dementia and Elderly Door Alarm, Motion Sensor & Help Pendant Kit Add On(s) | Expandable Sensors | Alzstore
Vibration Alarm/Sensor | Less EMF
Amcrest SmartHome Standalone Alarm PIR Sensor, Home Security Alarm System with 1 PIR Motion Detector, Amcrest Alarm Hub Required, Sold Separately. (AL-PIRSEN1)
Alarm Flood & Freeze Sensor | Ring
Honeywell 5800RPS - Wireless Recessed Door Sensor - Alarm Grid