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sensor security systems

Best Buy customers often prefer the following products when searching for Sensor Security Systems.

Browse the top-ranked list of Sensor Security Systems below along with associated reviews and opinions.

Browse the top-ranked list of Sensor Security Systems below along with associated reviews and opinions.

Main Results
  1. Ring - Alarm Contact Sensor (2 pack) - White - Front_Zoom
    Model:4XD3-S70EN0
    SKU:6097408
    Top comment

    "No issues so far...It's a must have...Great for ring security system....Ring so far is working for my needs although I don't use the monitoring they offer as I just want to be woke up if my home is breached and this system accomplishes that"

    "Great for ring security system."

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    Product Description

    Arm your windows and doors with extra security with this Ring Alarm Contact Sensor 2-pack. The easy-to-install monitors sense when a door or window opens, sending an alert directly to your phone or PC with a compatible app. This Ring Alarm Contact Sensor 2 pack works in tandem with Ring Alarm base station (not included) to secure your home.
    Your price for this item is $39.99
    Top comment

    "No issues so far...It's a must have...Great for ring security system....Ring so far is working for my needs although I don't use the monitoring they offer as I just want to be woke up if my home is breached and this system accomplishes that"

    "Great for ring security system."

    Hear more from customers

    Product Description

    Arm your windows and doors with extra security with this Ring Alarm Contact Sensor 2-pack. The easy-to-install monitors sense when a door or window opens, sending an alert directly to your phone or PC with a compatible app. This Ring Alarm Contact Sensor 2 pack works in tandem with Ring Alarm base station (not included) to secure your home.
  2. Ring - Alarm Contact Sensor - White - Front_Standard
    Model:4SD1S7-0EN0
    SKU:6129211
    Top comment

    "It's a must have...No issues so far...Great for ring security system....I use it on my investment properties but, if this is for your own home, then you probably already have service, so it is no issue"

    "Great for ring security system."

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    Product Description

    Add an extra level of defense against intrusion with this Ring Alarm Contact Sensor. When attached to your window or door, this sensor alerts you the moment movement is detected, providing point-of-entry protection. Compatible with the Ring Alarm base station (not included) this Ring Alarm Contact Sensor sends alerts directly to your phone.
    Your price for this item is $19.99
    Top comment

    "It's a must have...No issues so far...Great for ring security system....I use it on my investment properties but, if this is for your own home, then you probably already have service, so it is no issue"

    "Great for ring security system."

    Hear more from customers

    Product Description

    Add an extra level of defense against intrusion with this Ring Alarm Contact Sensor. When attached to your window or door, this sensor alerts you the moment movement is detected, providing point-of-entry protection. Compatible with the Ring Alarm base station (not included) this Ring Alarm Contact Sensor sends alerts directly to your phone.
  3. SimpliSafe - Entry Sensor - White - Front_Zoom
    Model:SS3-ENTRY
    SKU:6298671
    Top comment

    "We love this system...Very easy to intall...Excellent security device...something I learned, if you are trying to put on a horizontal, sliding window, you can use double sided table on a strong magnet from the hardware store so it will fit between the window panes"

    "Excellent security device"

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    Product Description

    Protect all the doors and windows in your home from break-ins with the SimpliSafe entry sensor. Working in tandem with your existing SimpliSafe protection package, this compact and discreet entry sensor goes unnoticed. Installation is a snap: simply place this SimpliSafe entry sensor on any window or door frame, and tap Add Device on your keypad.
    Your price for this item is $14.99
    Top comment

    "We love this system...Very easy to intall...Excellent security device...something I learned, if you are trying to put on a horizontal, sliding window, you can use double sided table on a strong magnet from the hardware store so it will fit between the window panes"

    "Excellent security device"

    Hear more from customers

    Product Description

    Protect all the doors and windows in your home from break-ins with the SimpliSafe entry sensor. Working in tandem with your existing SimpliSafe protection package, this compact and discreet entry sensor goes unnoticed. Installation is a snap: simply place this SimpliSafe entry sensor on any window or door frame, and tap Add Device on your keypad.
  4. Philips - Hue Motion Sensor - White - Front_Zoom
    Model:464602
    SKU:5540102
    Top comment

    "I Love My Lights...Does a great job...Excellent for full hands, or home security...The customizing part of the sensor is pretty nifty as well, where you can put it at super sensitive, so mid day, your dog or cat isn't going to walk into the room and turn on the lights, or you can make it super sensitive where a window shade moving in the wind can set them off"

    "Excellent for full hands, or home security"

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    Product Description

    Connect this Phillips Hue motion sensor to your Phillips Hue bridge (not included) to create a smart home lighting system. It turns on the light when you enter a room and shuts it off when no motion is detected to keep your energy bills down. The wireless design of this Phillips Hue motion sensor makes it simple to install.
    Your price for this item is $33.99
    On Sale
    Save $6
    The previous price was $39.99
    Top comment

    "I Love My Lights...Does a great job...Excellent for full hands, or home security...The customizing part of the sensor is pretty nifty as well, where you can put it at super sensitive, so mid day, your dog or cat isn't going to walk into the room and turn on the lights, or you can make it super sensitive where a window shade moving in the wind can set them off"

    "Excellent for full hands, or home security"

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    Product Description

    Connect this Phillips Hue motion sensor to your Phillips Hue bridge (not included) to create a smart home lighting system. It turns on the light when you enter a room and shuts it off when no motion is detected to keep your energy bills down. The wireless design of this Phillips Hue motion sensor makes it simple to install.
  5. Samsung - Multipurpose Sensor - White - Front_Zoom
    Model:GP-U999SJVLAAA
    SKU:6265828
    Top comment

    "I would buy again...Works well so far...This is great for DIY home security system....I purchased this sensor because it can detect temperature, vibration and it detects if a door, window, drawer or whatever you use it for is opened"

    "This is great for DIY home security system."

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    Product Description

    Help protect your home and family with this Samsung multipurpose sensor. Receive alerts if doors or windows are opened unexpectedly. Set lights and other connected devices to turn on and off as people come and go.
    Your price for this item is $19.99
    Top comment

    "I would buy again...Works well so far...This is great for DIY home security system....I purchased this sensor because it can detect temperature, vibration and it detects if a door, window, drawer or whatever you use it for is opened"

    "This is great for DIY home security system."

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    Product Description

    Help protect your home and family with this Samsung multipurpose sensor. Receive alerts if doors or windows are opened unexpectedly. Set lights and other connected devices to turn on and off as people come and go.
  6. Samsung - SmartThings Arrival Sensor - White - Front_Zoom
    Model:F-SS-PRES-001
    SKU:4481808
    Top comment

    "Love how it works...Good when it works...great product to have for home security...Even when I have everything turned on in my phone, my system picks up this sensor quicker than the phone does, so there is no delay in activating everything I have set to happen when I arrive"

    "great product to have for home security"

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    Product Description

    Samsung SmartThings Arrival Sensor: Stay informed when people enter and leave your home with this arrival sensor. Just connect to your SmartThings hub and your Apple® iOS, Android or Windows mobile device to receive alerts on the go. You can also set up the sensor to trigger lights to turn on and unlock your door when you arrive home and shut lighting off and lock the door when you leave.
    Your price for this item is $19.99
    Top comment

    "Love how it works...Good when it works...great product to have for home security...Even when I have everything turned on in my phone, my system picks up this sensor quicker than the phone does, so there is no delay in activating everything I have set to happen when I arrive"

    "great product to have for home security"

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    Product Description

    Samsung SmartThings Arrival Sensor: Stay informed when people enter and leave your home with this arrival sensor. Just connect to your SmartThings hub and your Apple® iOS, Android or Windows mobile device to receive alerts on the go. You can also set up the sensor to trigger lights to turn on and unlock your door when you arrive home and shut lighting off and lock the door when you leave.
  7. SimpliSafe - Motion Sensor - White - Front_Zoom
    Model:SS3-MOTION
    SKU:6298668
    Top comment

    "Great for my wood shop...The monitor works great...Simpli Safe Monitor - Good...Purchased an extra sensor to add to my simplisafe system, the set up process is so incredibly simple"

    "Simpli Safe Monitor - Good"

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    Product Description

    Detect intruders, and protect your space with this SimpliSafe motion sensor. This compact, easy-to-install device quickly integrates with existing systems and includes a powerful battery that offers years of use before replacement. The advanced motion detection technology lets this SimpliSafe motion sensor watch for intruders, while a unique human heat-mapping algorithm eliminates false positives by letting this sensor distinguish between pets and intruders.
    Your price for this item is $29.99
    Top comment

    "Great for my wood shop...The monitor works great...Simpli Safe Monitor - Good...Purchased an extra sensor to add to my simplisafe system, the set up process is so incredibly simple"

    "Simpli Safe Monitor - Good"

    Hear more from customers

    Product Description

    Detect intruders, and protect your space with this SimpliSafe motion sensor. This compact, easy-to-install device quickly integrates with existing systems and includes a powerful battery that offers years of use before replacement. The advanced motion detection technology lets this SimpliSafe motion sensor watch for intruders, while a unique human heat-mapping algorithm eliminates false positives by letting this sensor distinguish between pets and intruders.
  8. Ring - Protect Contact Sensor (6-Pack) - Front_Zoom
    Model:4CS6S9-0EN0
    SKU:6329306
    Top comment

    "Overall a good buy...Another Great Ring Product...Work great with the Ring Security...I bought the alarm system and this extra sensor for install in windows and doors, super easy install in minutes and not need someone you didn't know in your house"

    "Work great with the Ring Security"

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    Product Description

    Expand your protection with this Ring contact sensor six-pack. Setup is easy, requiring no special tools or expertise, and the sensors mount to any door or window. This Ring contact sensor six-pack combines with your Ring Protect base station to receive alerts on your compatible mobile device when doors or windows are opened.
    Your price for this item is $99.99
    Top comment

    "Overall a good buy...Another Great Ring Product...Work great with the Ring Security...I bought the alarm system and this extra sensor for install in windows and doors, super easy install in minutes and not need someone you didn't know in your house"

    "Work great with the Ring Security"

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    Product Description

    Expand your protection with this Ring contact sensor six-pack. Setup is easy, requiring no special tools or expertise, and the sensors mount to any door or window. This Ring contact sensor six-pack combines with your Ring Protect base station to receive alerts on your compatible mobile device when doors or windows are opened.
  9. Directed Electronics - Xpresskit Field Disturbance Sensor for Most Vehicles - White - Front_Standard
    Top comment

    "Nice peace of mind...Great addition to system...I got it installed in my 2016 F350 for extra security....Innitially, I did not add this upon installation of primary alarm system a few months ago and the crime rate has gone up exponentially and had my motorcycle's license plates taken last night, which is only a foot or so secured to a post in carport next to car and HAD I had this Proximity Alarm on, I would have been alerted to thier dastadly deeds so had it added-on the 350HV system and even with tinted windos, it works great, giving me much more peace of mind"

    "I got it installed in my 2016 F350 for extra security."

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    Product Description

    Keep your vehicle safe from theft with this disturbance sensor.
    Your price for this item is $59.99
    Top comment

    "Nice peace of mind...Great addition to system...I got it installed in my 2016 F350 for extra security....Innitially, I did not add this upon installation of primary alarm system a few months ago and the crime rate has gone up exponentially and had my motorcycle's license plates taken last night, which is only a foot or so secured to a post in carport next to car and HAD I had this Proximity Alarm on, I would have been alerted to thier dastadly deeds so had it added-on the 350HV system and even with tinted windos, it works great, giving me much more peace of mind"

    "I got it installed in my 2016 F350 for extra security."

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    Product Description

    Keep your vehicle safe from theft with this disturbance sensor.
  10. SimpliSafe - Water Sensor - White - Front_Zoom
    Model:SS3-WATER
    SKU:6305563
    Top comment

    "Great piece of mind...Happy with Simpli Safe...I tested by poured water underneath the sensor and it alert me quickly.It's so easy to add this sensor to my SimpliSafe system"

    "Happy with Simpli Safe"

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    Product Description

    Be notified of possible home flooding with this SimpliSafe water sensor. It emits an audible alert when it touches water to provide an immediate warning, and it works with SimpliSafe alarm monitoring plans to deliver email alerts when you're away. This SimpliSafe water sensor has double-sided tape to hold it securely in areas where water damage is possible.
    Your price for this item is $19.99
    Top comment

    "Great piece of mind...Happy with Simpli Safe...I tested by poured water underneath the sensor and it alert me quickly.It's so easy to add this sensor to my SimpliSafe system"

    "Happy with Simpli Safe"

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    Product Description

    Be notified of possible home flooding with this SimpliSafe water sensor. It emits an audible alert when it touches water to provide an immediate warning, and it works with SimpliSafe alarm monitoring plans to deliver email alerts when you're away. This SimpliSafe water sensor has double-sided tape to hold it securely in areas where water damage is possible.
  11. Samsung - Motion Sensor - White - Front_Zoom
    Model:GP-U999SJVLBAA
    SKU:6265834
    Top comment

    "great deal @ 25$...It is very useful...I use 4 of them to control lights in various rooms and for home security....I'm not sure about the battery life yet (so only 4 stars) but otherwise this one is a great product, and I anticipate that I will buy at least one or two more to add to my system"

    "I use 4 of them to control lights in various rooms and for home security."

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    Product Description

    Keep your home under control with this Samsung SmartThings motion sensor. It sends an alert to your smartphone via the SmartThings app when it detects unexpected movement, and the thermostat trigger feature lets you program it to adjust the temperature based on occupancy. The 131-foot range of this Samsung SmartThings motion sensor accommodates a wide variety of floor plans.
    Your price for this item is $24.99
    Top comment

    "great deal @ 25$...It is very useful...I use 4 of them to control lights in various rooms and for home security....I'm not sure about the battery life yet (so only 4 stars) but otherwise this one is a great product, and I anticipate that I will buy at least one or two more to add to my system"

    "I use 4 of them to control lights in various rooms and for home security."

    Hear more from customers

    Product Description

    Keep your home under control with this Samsung SmartThings motion sensor. It sends an alert to your smartphone via the SmartThings app when it detects unexpected movement, and the thermostat trigger feature lets you program it to adjust the temperature based on occupancy. The 131-foot range of this Samsung SmartThings motion sensor accommodates a wide variety of floor plans.
  12. Swann - Garage Parking Sensor - White - Front_Standard
    Model:SWADS-GARSEN-GL
    SKU:5920608
    Top comment

    "Very easy to set up...I love this product...Feel safe parking...I installed this Swann parking sensor 3 days ago and it works great"

    "Feel safe parking"

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    Product Description

    Ensure safe, precise parking with this Swann garage parking sensor. Its LED indicator provides green, orange and red signals to assist you in properly approaching the set parking zone and to alert you when to stop. This Swann garage parking sensor lets you set a safe distance of 1, 2 or 3 feet from your wall.
    Your price for this item is $17.99
    Save $2
    The previous price was $19.99
    Top comment

    "Very easy to set up...I love this product...Feel safe parking...I installed this Swann parking sensor 3 days ago and it works great"

    "Feel safe parking"

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    Product Description

    Ensure safe, precise parking with this Swann garage parking sensor. Its LED indicator provides green, orange and red signals to assist you in properly approaching the set parking zone and to alert you when to stop. This Swann garage parking sensor lets you set a safe distance of 1, 2 or 3 feet from your wall.
  13. Honeywell - Smart Home Security Motion Sensor - Front_Zoom

    Product Description

    Keep an eye on your home with this Honeywell indoor motion sensor. It has a 40-foot range that notifies you when movement is detected from across the room, and the adhesive mounting ensures easy installation while maintaining wireless functionality. This Honeywell indoor motion sensor uses smart detection technology to reduce false alarms triggered by pets.
    Your price for this item is $49.99

    Product Description

    Keep an eye on your home with this Honeywell indoor motion sensor. It has a 40-foot range that notifies you when movement is detected from across the room, and the adhesive mounting ensures easy installation while maintaining wireless functionality. This Honeywell indoor motion sensor uses smart detection technology to reduce false alarms triggered by pets.
  14. Directed Electronics - Ultrasonic Security Sensor - Front_Standard

    Product Description

    Protect your vehicle from intrusion with this Directed Electronics 509U ultrasonic security sensor that monitors your vehicle's interior and triggers an alarm if motion is detected to help ward off potential intruders. Ultrasonic Security Sensor
    Your price for this item is $28.99

    Product Description

    Protect your vehicle from intrusion with this Directed Electronics 509U ultrasonic security sensor that monitors your vehicle's interior and triggers an alarm if motion is detected to help ward off potential intruders. Ultrasonic Security Sensor
  15. Ooma - Wireless Smart Door and Windows Sensor - White - Angle_Zoom

    Product Description

    Secure your home entry points with this Ooma door and window sensor. App notification along with email, text and phone alerts informs you about unauthorized access instantly, and smartphone access lets you enable or disable the device from anywhere. This Ooma door and window sensor works with your existing Ooma Telo security system for whole-home coverage.
    Your price for this item is $24.99

    Product Description

    Secure your home entry points with this Ooma door and window sensor. App notification along with email, text and phone alerts informs you about unauthorized access instantly, and smartphone access lets you enable or disable the device from anywhere. This Ooma door and window sensor works with your existing Ooma Telo security system for whole-home coverage.