Best Motion Sensors for Alexa

Motion sensors automate your home and improve security by triggering lights, alarms, and routines. These are the best Alexa-compatible motion sensors available.

1. Philips Hue Motion Sensor
Premium sensor with lighting automation and smart detection.
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2. Aqara Motion Sensor
Compact sensor with long battery life and fast response.
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3. Ring Motion Detector
Works with Ring Alarm systems for complete home protection.
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4. Echo Flex Motion Sensor
Affordable Alexa-based motion detection solution.
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THIRDREALITY Zigbee Motion Sensor 2 Pack, Zigbee Hub Required, Pet Friendly, Work with Home Assistant,SmartThings, Aeotec,Homey, Hubitat or Echo Devices with Built-in Zigbee hub

ZIGBEE STANDARD COMPATIBLE MOTION SENSOR: Works with compatible Zigbee hubs or Echo devices with Zigbee hub built-in, such as Echo (4th Gen), Echo Plus (1st Gen and 2nd Gen), Echo Studio, Eero 6, Eero Pro 6, Home Assistant, SmartThings 2015/2018, Aeotec, Hubitat, Homey Bridge, Homey Pro, Third reality Hub and Third Reality Smart Speaker. Zigbee Hub Required.
CREATE ROUTINES: Using the Alexa app, create your own routines that are triggered when motion is detected. Customize Alexa messages like “Welcome Home” or “Motion Detected in Living Room” when motion is detected.
SMART LIGHT CONTROL: If you have a smart light or smart plug connected to the Alexa service, you can create a routine in the Alexa app that will enable it to automatically turn on when motion is detected (and off when no motion is detected for a period of time that you specify).
HASSLE-FREE SETUP: Installs in a few seconds. Just make sure device in paring mode and compatible Echo device automatically discovers it by saying “Alexa, discover devices”. Only for indoor use.
GREAT RANGE AND LONG BATTERY LIFE : Capable of detecting motion up to 20 feet (6 meters) away. 2 AAA batteries can last for 2 years in typical usage.

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Ring Floodlight Cam Wired Plus (newest model), Outdoor home or business security with motion-activated 1080p HD video and floodlights, Black Black 1 Camera Floodlight Cam Wired Plus Only

1080p HD security camera for your home or business with motion-activated LED floodlights, 105dB security siren, Two-Way Talk, and customizable motion zones.
Get motion-activated notifications on your phone, tablet or PC and check in at home anytime with Live View all in the Ring app.
Customize motion zones in the Ring app to fine-tune which areas you want to focus on.
Eliminate blind spots or dark areas at home or your business with built-in Color Night Vision and two LED floodlights.
Easily hardwire to the outside of your home and connect to wifi for around-the-clock power and peace of mind.

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Aqara Presence Sensor FP2 Bracket Set, mmWave Radar Wired Motion Sensor, Zone Positioning, Multi-Person & Fall Detection, Supports HomeKit, Alexa, and Home Assistant, 2.4 GHz Wi-Fi Required

[Installation Method] With the new installation method for the FP2, you can now mount it in the corner of a room. Just attach the included angle mount and switch to the corresponding mode in the app. This setting eliminates dead zones caused by the sensor’s angle and rotates the room layout by 45 degrees, allowing for enhanced zone detection and more automation options.
[Multi-Person &Zone Positioning] The Aqara Presence Sensor FP2 can simultaneously detect up to 5 people and trigger different scenarios and automation.Moreover, the FP2(2.4GHz Wi-Fi REQUIRED) offers significant advantages over PIR infrared motion sensors by using a single radar sensor to monitor rooms of up to 40 m² (430 sq ft). You can also divide it into up to 30 zones, such as sofa, bed or desktop, etc. and set up individual automations for each zone. It is like having several PIR sensors at the same time with one Presence Sensor FP2. Please note: the FP2 is a wired sensor that should be constantly powered.
[Sleep monitoring& Fall Detection] You can install FP2 next to the bed and select the sleep monitoring mode to sense the human body’s sleep status in real time and generate a sleep health report.Moreover, you also can mount the FP2 on the ceiling and choose the Falling Detection Mode, which will detect and alert you through the app if someone falls. (Note: The FP2 is not a medical device, and can only be used for notification purposes)
[Multi-Ecosystem Support] The Aqara Presence Sensor FP2 is exposed as multiple sensors to HomeKit, Alexa, Samsung SmartThings and Home Assistant. (Note: The device can be added directly to Home Assistant using HomeKit Controller integration) You can integrate the sensor easily without requiring an Aqara hub, which is a great solution for smart home enthusiasts. For a stable connection, ensure the sensor is placed within 6 meters (19 feet) of your router.
[Ultra-High Precision, Privacy, and Enhanced Features]By implementing millimeter-wave radar technology, the Presence Sensor FP2 provides precise detection of movement without false negatives, even for slight movements. No camera monitoring system maximizes privacy. With IPX5, it can be installed in wet environments. Additionally, it has a built-in light sensor for flexible lighting automations (Only available in Aqara Home, HomeKit, and IFTTT). Automations of FP2 are executed without sending to the cloud and will keep working even if there is no internet connection.

Philips Hue Secure Smart Contact Sensor, White – 2 Pack – Made for Indoor Doors and Windows – Requires Hue Bridge – Works with The Hue App White Pack of 2

SECURITY THAT WORKS WITH YOUR PHILIPS HUE LIGHTS: Hue Secure sensors integrate seamlessly with your existing Philips Hue lights; When motion is detected, your lights can turn on automatically.
STAY IN THE KNOW, WHEREVER YOU ARE: Get real-time motion notifications sent directly to your phone. Trigger alarms right from the Hue app.
ONE APP, COMPLETE CONTROL: Control your Hue lights, cameras, sensors, and security notifications from a single app. The Hue app puts your entire smart home security system in the palm of your hand.
SUPREME PEACE OF MIND – When armed, the contact sensors send a real-time alert to your mobile device- and can even turn on lights as soon as they are triggered.
AUTOMATE YOUR LIGHTS – The contact sensors are perfect for frequently used areas. Have the hallway light turn on when the front door opens, for example.