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home alarms & sensors

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motion sensors & detectors

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. 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 $29.57

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

    SKU: J7GJZSY3LH

    Great quality...Excellent product from the Best Buy, which is the best in the market...Love it! Works Great!...Works great. It's wire free so love that. 2 year battery life expectancy....Absolutely love...

    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

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

    SKU: J39HQX99XG

    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. XODO - PS2 Smart Home Wireless Motion Sensor (2-Pack) – Compatible with Google Assistant & Alexa (2-Pack)

    SKU: JXK4Z3LVLT

    Product Description

    A wireless motion sensor 2-pack compatible with Google Assistant and Alexa for enhanced smart home security.
    See all Motion Sensors & Detectors
    Your price for this item is $19.99
    Save $10
    The previous price was $29.99

  5. FEIT ELECTRIC - Wi-Fi Smart Motion Sensor - White

    SKU: J7C555P3Q2

    Product Description

    A white, battery-powered smart motion sensor that sends phone alerts and integrates with other smart devices.
    See all Motion Sensors & Detectors
    Your price for this item is $36.32

  6. Fosmon - WaveLink Motion Sensor for Wireless Motion Sensor Door Chime - 1 pack - White

    SKU: J3KCT9TH4H

    Product Description

    A white battery-powered motion sensor with LED indicator, detecting movement up to 16.4 feet at 110 degrees.
    See all Motion Sensors & Detectors
    Your price for this item is $15.99

  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 $32.27

  8. 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 $53.25

  9. SimpliSafe - Motion Sensor - White

    SKU: J362VFS82G

    Works as intended, love the pet setting. So far no issues have dogs over 50 lbs....Works great with Simplisafe, protects our rentals and Airbnbs...Pet motion works great...Great!

    Product Description

    A white, battery-powered motion sensor with pet detection, 90º field of view, and app compatibility.
    See all Door & Window Alarms
    Your price for this item is $34.99
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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.