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Small Motion Sensors

A motion sensor is a device that triggers an action when it detects that something has moved. It's an important part of your home security system, and it can also be used to protect your pets and children. Browse the top-ranked list of small motion sensors below along with associated reviews and opinions. 

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  1. Cync - Wire-Free Motion Sensor (1-Pack) - White

    SKU: J7GJZSY3LH

    Motion sensor...Looking for an outdoor motion sensor for a smart light switch. Mounted it up under an eve out of the rain, works well so far but time will tell...Love these motion sensors. Easy to in...

    Product Description

    A wire-free white motion sensor that automates Cync smart devices with adjustable, app-compatible Bluetooth control.
    See all Motion Sensors & Detectors
    Your price for this item is $26.99
    Save $8
    The previous price was $34.99

  2. Nanoleaf - Sense+ Smart Wireless Switch with Built-in Motion & Daylight Sensors (1PK) - White

    SKU: CGC7VVZSTH

    Product Description

    A white wireless smart switch with built-in motion and daylight sensors for effortless lighting control anywhere.
    See all Smart Light Switches & Dimmers
    Your price for this item is $29.99

  3. Swann - Wireless Motion Alert Sensor (2-pack) - White

    SKU: J39HQX99XG

    Awesome Wireless Motion Alert Sensor!...[This review was collected as part of a promotion.] The Swann Wireless Motion Alert Sensor is amazing! I placed this in my living room to catch any movement by...

    Product Description

    A wireless, battery-powered motion sensor in white that detects heat and movement, compatible with Alexa and Google Assistant.
    See all Motion Sensors & Detectors
    Your price for this item is $54.99

  4. Aqara - T1 Door and Window Sensor- Requires Hub product, Supports Apple HomeKit, Alexa, Google, SmartThings - White

    SKU: JJ8RHCJJVQ

    Best Buy SKUs for Aqara Products Mentioned: 6568829 T1 Sensor (Requires Hub)6568825 P1 Sensor Thread & Matter (No Hub)6568824 M2 Aqara Hub 6568833 FP2 Presence Detector (No Hub)Not Available P1 Motion...

    Product Description

    A white battery-powered sensor that detects door or window status and supports major smart home platforms.
    See all Door & Window Alarms
    Your price for this item is $19.99

  5. SPT - Wired 360 Fov Ceiling Mount Pir (Passive Infrared) Motion Sensor

    SKU: J3GTZG9CVF

    Product Description

    A discreet ceiling-mounted PIR motion sensor offering 360° detection and reliable coverage for small to medium rooms.
    See all Motion Sensors & Detectors
    Your price for this item is $30.00

  6. SPT - Wired 360 Fov Ceiling Mount Pir (Passive Infrared) Motion Sensor (4-Pack)

    SKU: J3GTZG9275

    Product Description

    A discreet ceiling-mount motion sensor with 360° detection, ideal for small to medium rooms and seamless décor integration.
    See all Motion Sensors & Detectors
    Your price for this item is $95.00

  7. SPT - Wired 360 Fov Ceiling Mount Pir (Passive Infrared) Motion Sensor (2-Pack)

    SKU: J3GTZG9273

    Product Description

    A discreet ceiling-mount motion sensor with 360° detection and up to 22-foot floor coverage for reliable security.
    See all Motion Sensors & Detectors
    Your price for this item is $55.00

  8. ecobee - SmartSensor for Doors and Windows (2-Pack) - White

    SKU: JXC53VLSZG

    I love how easy it is to setup and use. The sensors serve two purposes, a motion sensor and door sensor. ...Lag on motion detection...I ended up returning them and going with Philips hue motion sensors...

    Product Description

    A white, battery-powered sensor that sends instant notifications when doors or windows are opened or closed.
    See all Door & Window Alarms
    Your price for this item is $79.99

  9. SPT - Wired Dual Passive PIR Intruder Alarm Motion Sensor (2-Pack)

    SKU: J3GTZG92JP

    Product Description

    A wired dual passive infrared motion sensor that reliably detects intruders by sensing heat changes in any space.
    See all Motion Sensors & Detectors
    Your price for this item is $55.00

  10. SPT - Wired Dual Passive PIR Intruder Alarm Motion Sensor

    SKU: J3GTZG92J2

    Product Description

    A wired dual passive infrared motion sensor that reliably detects intruders by sensing heat changes in any space.
    See all Motion Sensors & Detectors
    Your price for this item is $30.00
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FAQ

Small motion sensors can be integrated with a wide range of devices, including smart lights, security cameras, home automation systems, alarms, and smart thermostats. They are compatible with many smart home ecosystems, allowing you to automate various tasks based on motion detection.

Some small motion sensors connect directly to Wi-Fi, while others may require a dedicated hub or bridge, depending on the brand and model. Be sure to check the product specifications to determine the connectivity requirements for your chosen sensor.

Many small motion sensors are designed for indoor use, but there are models specifically built for outdoor environments. If you need an outdoor sensor, look for products that are weather-resistant and rated for exterior installation.

Small motion sensors can be powered in various ways, including batteries, USB cables, or direct wiring to an electrical source. Battery-powered models offer flexible placement, while wired options may provide continuous power without the need for battery changes.

Many small motion sensors are compatible with popular voice assistants such as Amazon Alexa and Google Assistant. This allows you to create custom automations and control your smart home devices with voice commands when motion is detected.