Amazon.com: Sengled Smart Window & Door Sensor, Hub Required, Compatible with Alexa, Google Assistant and SmartThings, Echo 4th, Echo Show 10, Echo Plus, 2 Count (Pack of 1) : Everything Else
Aqara Motion Sensor P1 Plus Aqara Water Leak Sensor, REQUIRES AQARA HUB, Zigbee Connection, Alarm System, Remote Monitor and Control, Smart Home Automation - - Amazon.com
Philips Hue Dusk-to-Dawn Outdoor Motion Sensor for Smart Home, Wireless & Easy to Install (Hue Hub Required, for use with Philips Hue Smart Lights) - - Amazon.com
Amazon.com: Onvis Smart Homekit Motion Sensor Indoor Humidity Gauge Hygrometer Thermometer Home Automation Trigger Bluetooth No Hub Required : Patio, Lawn & Garden
Amazon.com: WiFi Door Sensor Detect Open/Close Status, No Hub Required, 2.4GHz, Work with Alexa, Google Assistant, NAS-DS05 : Tools & Home Improvement
Amazon.com: TREATLIFE Smart Door Sensor, Zigbee Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation, Compatible with Alexa and Google Assistant (Hub Required and Sold Separately) : Tools &
Amazon.com : eco4life Smart Home Security Starter Kit Home Automation System, Hub|Motion Sensor | Temperature Sensor | Multi-Purpose Sensor, 24/7 Monitoring System no Contract Free for Home Office APP alerts : Electronics
Amazon.com : tolviviov Motion Sensor - Compatible with tolviviov Home Alarm System-HUB Needed : Electronics
Zwave Water Sensor: Aeotec Water Sensor 7 Pro, with Flood, Temperature, Humidity Sensor, SmartThings Sensor Compatible, Z-Wave Plus, S2, SmartStart, ZWave hub Required - - Amazon.com
Aeotec TriSensor, Z-Wave Plus S2 Enabled Zwave Motion Sensor, Temperature, Light Sensor, Work with Zwave Hub Smartthings 3-in 1 Security System, Battery Powered - - Amazon.com
Amazon.com: YoLink Motion Sensor, 1/4 Mile Long Range Smart Home Indoor Wireless Motion Detector Sensor Works with Alexa, IFTTT, and Home Assistant. Movement Detector App Alerts Remote Monitor-YoLink Hub Required : Electronics
Aqara Smart Hub M1S Plus 3 Aqara Door and Window Sensor, Zigbee Connection, Alarm System, Remote Monitor and Control, Smart Home Automation - - Amazon .com
Amazon.com: tolviviov Alpha Contact Sensor 6 Pack - Compatible with tolviviov Alpha Home Alarm System-HUB Needed : Electronics
Aeotec SmartThings Door/Window Sensor, Multipurpose Sensor, Works with Smart Home Hub: Amazon.com: Tools & Home Improvement
Aqara Motion Sensor, REQUIRES AQARA HUB, Zigbee Connection, for Alarm System and Smart Home Automation, Broad Detection Range, Compatible with Apple HomeKit, Alexa, Works With IFTTT - - Amazon.com
Aqara Door and Window Sensor plus Temperature and Humidity Sensor, REQUIRES AQARA HUB, Zigbee Connection, for Remote Monitoring and Smart Home Automation, Compatible with Apple HomeKit, Alexa - - Amazon.com
Aqara Vibration Sensor, REQUIRES AQARA HUB, Zigbee Connection, Wireless Mini Glass Break Detector for Alarm System and Smart Home Automation, Compatible with Apple HomeKit, Works With IFTTT - - Amazon.com
YoLink Smart Home Starter Kit: Water Sensor 4-Pack & Hub Kit - Sensor Compatible with Alexa and IFTTT, 1/4 Mile Range, Instant Remote App, Text(Limited) and Email Alert - - Amazon.com