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Security Sensors

 prices on 1653 models
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This Outdoor Siren is designed for areas where wiring is difficult or impossible, it has weatherproof and it seamlessly connects with your home security system to alert burglars and neighbors of intrusion with a loud siren and a flashing strobe light. If an alarm is triggered the siren sounds and the flashing LEDs are activated. Not only will this scare off the intruder, but alert others and the police that something has gone wrong.
$33.75
BestBuy.com
Delivery: in USA
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Get even more peace of mind with SmartSensor for doors and windows. They protect your home with instant notifications when an entryway or access point is opened or closed. With an ecobee Smart Security subscription, you can unlock even more and get instant alerts when any unexpected motion is detected in your home.
Price from $79.99 up to $113.97 
Compare prices and buy Smart Sensor ecobee Smart Sensors for Windows and Doors: UL Listed, Energy Star Certified, White, 3-Year Warranty, Lithium Battery Includ
$80.00
$80.00
$80.00
$80.00
$80.00
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Model: H5127 Experience the future of automation with the Govee Presence Sensor, designed to elevate your home security experience. Boasting ultra-high accuracy through a fusion of radar and infrared sensors, this device detects human movement and static presence with unmatched precision. Ultra-High Accuracy: Govee Presence Sensor utilizes radar and infrared technology to detect human movement and static presence. 2.4GHz Wi-Fi required. Flexible Installation: Mount on wall or ceiling with a 26ft max detecting range. Important: The presence sensor should be constantly powered. Multi-Ecosystem Support: Seamlessly integrates into various smart home ecosystems, including Alexa, IFTTT, Govee, and …
Price from $33.99 up to $39.99 
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$34.00
$40.00
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The Ring Bridge unlocks smart controls for Ring lights. It lets Ring lights, doorbells and cameras talk to each other and work better together in the Ring App, so you can receive mobile notifications whenever motion is detected and adjust settings with your phone or tablet. With the Ring Bridge you can also group together Ring Smart Lights and connect them to Ring doorbells and cameras. If one Ring Bridge-enabled device detects motion, it can turn on lights, activate cameras and more. It also lets you connect Ring Smart Lights to Alexa-enabled devices to turn on lights and adjust settings at the sound of your voice. *One Ring Bridge supported per household. Supports approximately 50 Ring Smart …
$53.99
Newegg.com
Delivery: in USA
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Newegg.com
Keep your home safe and secure with the Vivitar Wi-Fi door sensor! Much more cost effective than a home security system, these sensors can be attached to all entrances of your home and they detect when motion occurs. An alert then gets instantly sent to your smartphone or tablet to keep you notified of any intruders. It requires Wi-Fi and has a simple setup with the app. Product Details Sends alert once sensor is triggered Simple Wi-Fi setup with app Works with iOS & Android devices Individual tag settings Super low energy consumption (2x AAA batteries, not included)
$19.99
Buydig.com
Delivery: in USA
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Buydig.com
Easily install the First Alert SMCO200 Battery-Operated Combination Smoke and Carbon Monoxide Alarm with Slim Profile Design. The alarm is half the depth of a standard alarm and provides reliable 2-in-1 smoke and carbon monoxide protection. Meets new industry standards with First Alert's Precision Detection advanced sensing technology to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
$46.99
AceHardware.com
Delivery: USA
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AceHardware.com
The First Alert SMCO210 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design uses First Alert's Precision Detection advanced sensing technology and meets new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency. This 2-in-1 alarm provides convenient protection against both fire and carbon monoxide (CO). Also equipped with a 10-year sealed battery to eliminate the need for battery replacements and low battery chirps.
Price from $56.99 up to $58.99 
Compare prices and buy First Alert Slim Battery-Powered Electrochemical/Photoelectric Smoke and Carbon Monoxide Detector 1 1046796
$57.00
$59.00
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Take instant action against burglary and other emergency situations with this SimpliSafe panic button. When pressed, it triggers your security system’s alarm to immediately notify SimpliSafe or the police of your urgent call for help. Opt for the silent feature of this SimpliSafe panic button to discreetly signal for help without the intruder’s knowledge.
$19.99
BestBuy.com
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Act fast against burglaries with this SimpliSafe glass break sensor. It triggers an alarm if it detects the sound of shattering glass within its 20-foot range, providing reliable security even when no motion detector is used. This SimpliSafe glass break sensor utilizes detection algorithm and digital signal processing technologies for accurate sound recognition.
$39.99
BestBuy.com
Delivery: in USA
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Easy to install on every type of door or window. The magnet goes on the door or window, and the sensor goes on the frame (or vice versa). Magnet can be placed up to 2 inches from the sensor, so sensors fit on all types of doors and windows. SimpliSafe sensors come with the battery pre-installed and adhesive tape pre-applied, making set-up a snap.
$54.99
BestBuy.com
Delivery: in USA
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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.
$15.99
BestBuy.com
Delivery: in USA
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First Alert Onelink combination smoke and carbon monoxide alarms. Create wireless links with other smoke alarms and carbon monoxide alarms. Talking alarm can be easily programmed for alarm's location within the home (11 pre-programmed choices). Voice also notifies which hazard is being sensed. Easily link alarms together with the press of a button. When one alarm sounds, they all sound for maximum whole home protection. Photoelectric smoke sensor reduces nuisance alarms from normal smoke or steam. Easy access to battery drawer: no need to take down alarm to change battery. 5-year limited warranty. Meets UL standards.
$90.99
Officedepot.com
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Officedepot.com
Turn any small space into a clean air zone with the Personal Space Air Purifier. It captures up to 99.97% of dust, pollen, pet dander, smoke, mold spores and household odors. The replaceable carbon prefilter/HEPA filter combo eliminates particles as small as 0.3 microns. Features 3 fan speeds and LED nightlight. Recommended for spaces up to 100 sq. ft.
Price from $96.00
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$96.00
$65.00
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Instant protection with all-weather reliability that goes beyond your indoor walls. Ring Sensors are built to break free from traditional systems with no need for hubs or the limited reach of WiFi. On Amazon Sidewalk, these devices stay connected for reliable protection day and night.1 Add more devices anytime to expand your coverage as your home security needs grow.
$69.99
BestBuy.com
Delivery: in USA
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Level up your lighting game with the iMounTEK Motion Sensor Ceiling Light! Ditch the wall switch and experience the future with its smart motion detection, covering a wide area. Customize your vibe with three color temperatures and ten brightness settings, controlled by a handy remote. Choose your mode: always-on, night sensing, or daytime sensing! It's energy-efficient, easy to install anywhere, and has a long-lasting rechargeable battery. Upgrade your hallways, closets, and more with effortless, customizable light. Get your iMounTEK Motion Sensor Ceiling Light today!
What's in the Box?


- Motion Sensor Ceiling Light (1- or 2-Pack) - iMounTEK Motion Sensor Ceiling Light

- Metal Sheet
Price from $25.99
Compare prices and buy iMounTEK Motion Sensor Ceiling Light - Motion Sensor Ceiling Light HGCEILINGLIGHT(1PC)GPCT5387 (1- or 2-Pack)
$26.00
$26.00
$26.00
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Level up your lighting game with the iMounTEK Motion Sensor Ceiling Light! Ditch the wall switch and experience the future with its smart motion detection, covering a wide area. Customize your vibe with three color temperatures and ten brightness settings, controlled by a handy remote. Choose your mode: always-on, night sensing, or daytime sensing! It's energy-efficient, easy to install anywhere, and has a long-lasting rechargeable battery. Upgrade your hallways, closets, and more with effortless, customizable light. Get your iMounTEK Motion Sensor Ceiling Light today!
What's in the Box?


- Motion Sensor Ceiling Light (1- or 2-Pack) - iMounTEK Motion Sensor Ceiling Light 2pc

- Metal Sheet<
Price from $41.99
Compare prices and buy iMounTEK Motion Sensor Ceiling Light - Motion Sensor Ceiling Light 2pc HGCEILINGLIGHT(2PCS)GPCT5387 (1- or 2-Pack)
$42.00
$42.00
$42.00
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