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Security Sensors

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An easy bundle of Wi-Fi alert sensors & siren to keep your home safe
Price from $139.99
Compare prices and buy Swann Home Security Alert Kit SWIFI-ALARMKITA
$140.00
$140.00
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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
Help secure outdoor gates, sheds, guesthouses, and windows with Ring Alarm Outdoor Contact Sensor. Get mobile alerts when your outdoor gate opens, or set the sensor to automatically trigger your Ring Alarm siren when armed in Home or Away mode. Ring Protect subscription required, sold separately.* Outdoor Contact Sensor comes with mounting tape and screws for easy installation on most surfaces. Requires Ring Alarm or Ring Alarm Pro, both sold separately.
Price from $49.99 up to $56.99 
Compare prices and buy Ring Alarm Outdoor Contact Sensor
$50.00
$50.00
$50.00
$57.00
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Ring Alarm Motion Detector expands your Ring Alarm and adds an extra layer of security to your home. When your Ring Alarm system is armed, the Motion Detector sends instant alerts to your phone and tablet whenever motion is detected at home.*Ring Protect subscription required, sold separately. The Motion Detector is a simple addition to your Ring Alarm that installs in minutes. Simply place your Motion Detector in a corner of any room in your home, connect it to your Ring Alarm Base Station, and you’re all set up!
Price from $59.99
Compare prices and buy Ring Alarm Motion Detector 2pk
$60.00
$60.00
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Monitor glass windows and doors for break-in attempts with Ring Alarm Glass Break Sensor. Using AI technology, the sensor detects the sound of glass breaking up to 25 feet. You’ll receive notifications whenever breaking glass is detected, or receive a call from our monitoring center if you have enrolled in professional monitoring* with a Ring Protect Pro subscription, sold separately.** Requires Ring Alarm or Ring Alarm Pro, both sold separately.
Price from $39.99
Compare prices and buy Ring Alarm Glass Break Sensor
$40.00
$40.00
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Sold As Pair/ Advanced Glass Break Detection/ Real-time Notifications/ 25 Ft. Detection Range/ Simple Setup/ Z-wave Compatible/ AI Technology Detects Sounds/ Up To 3 Years Battery Life/ White Finish
Price from $69.99
Compare prices and buy Ring White Alarm Glass Break Sensor B09BY4LKKG (2-Pack)
$70.00
$70.00
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Expand your Ring Alarm system to secure each door and window in your home, and get alerts as soon as they open. Ring Alarm Contact Sensors mount to any door or window frame in your home for easy, DIY installation. Connect them to your Ring Alarm and receive mobile alerts from the Ring App so you’ll always be the first to know when something’s ajar. *Requires Ring Alarm Security Kit (Gen 2).
Price from $99.99
Compare prices and buy Ring Alarm Door and Window Sensor - 6pk
$100.00
$100.00
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Expand your Ring Alarm system to secure each door and window in your home, and hear chirps as soon as they open. Ring Alarm Contact Sensors mount to any door or window frame in your home for easy, DIY installation. Connect them to your Ring Alarm and receive mobile alerts from the Ring App so you’ll always be the first to know when something’s ajar. Ring Protect subscription required, sold separately.*
Price from $39.99 up to $44.99 
Compare prices and buy Ring Alarm Contact Sensor 2pk
$40.00
$45.00
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Enhance your home security with the Ring® Alarm Window and Door Contact Sensor, 4SD1SZ-0EN0 (2nd Gen). Receive instant mobile alerts whenever doors and windows are opened, keeping you informed and in control. With a more compact design, this sensor offers increased placement options to suit your home layout. Installation is a breeze with no tools required; simply mount it to door and window frames for immediate functionality. The sensor includes two 3V CR2032 batteries for lasting power and reliability. Note that the Ring Alarm Base Station (sold separately) is required for optimal performance. Elevate your home protection with the advanced features of the Ring® Alarm Window and Door …
Price from $18.99 up to $19.99 
Compare prices and buy Ring ® Alarm Window and Door Contact Sensor, 4SD1SZ-0EN0 N30 (2nd Gen)
$19.00
$19.00
$19.00
$20.00
$20.00
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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 $79.99 up to $89.99 
Compare prices and buy Personal Space Air Purifier PEAIRDSK
$80.00
$90.00
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Price from $24.99 up to $25.79 
Compare prices and buy Mr. Heater Propane Gas Gauge, Black, F276342
$25.00
$26.00
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Know when mail arrives or when anyone opens your mailbox with Ring Mailbox Sensor. Pair with Ring Bridge to receive a real-time notification in the Ring App or via a connected Alexa-enabled device whenever your Mailbox Sensor detects motion. Plus, pair Mailbox Sensor with Ring Smart Lighting, Cameras, and Doorbells to turn on or start recording whenever your mailbox is opened.* *Requires Ring Bridge (sold separately) for all smart functionalities featured in the Ring App, such as, mobile notifications, customizable settings and the ability to connect to other compatible Ring and Alexa-enabled devices.
Price from $29.99
Compare prices and buy Ring Mailbox Sensor - Black
$30.00
$30.00
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First Alert Replacement Hardwired Smoke Alarm (Model SA9120B) is 120V AC powered alarm with 9V battery backup in the event of power failure. The alarm can be interconnected with up to 12 other compatible smoke alarms and six compatible devices such as bells and horns. Features a universal mounting bracket and tamper-proof locking pins, plus adapter plugs to replace other non-First Alert alarms without rewiring. Alarm includes a loud, 85dB siren and single button test/silence. Meets UL217 standard and backed by 10 year limited warranty.
Price from $14.79 up to $22.99 
Compare prices and buy First Alert SA9120BPCN Hardwired Smoke Detector with Battery Backup
$15.00
$23.00
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Enhance your household's fire safety and enjoy greater peace of mind with the First Alert BRK Hardwired Smoke Alarm with 10-year Battery Backup. Equipped with an ionization sensor, this 120-volt hardwired smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm. Included adapter plugs eliminate the need for re-wiring during installation, while a backup 10-year battery helps keep the unit running in case of a power outage. Designed to maximize accessibility and ease of use, this hardwired smoke detector features a single button that allows you to test and silence the alarm. And thanks to the universal mounting bracket, this smoke alarm is easy to install.…
$33.99
AceHardware.com
Delivery: USA
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AceHardware.com
Price from $99.95 up to $99.99 
Compare prices and buy Eve Room Indoor Air Quality Monitor - Silver 10027831
$100.00
$100.00
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Price from $149.99
Compare prices and buy Eve Aqua - Smart Water Controller with Apple HomeKit technology 10028112
$150.00
$150.00
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Price from $99.99 up to $129.99 
Compare prices and buy Garmin Delta SE Dog Collar Device, Black, 010-02608-10
$102.00
$130.00
$100.00
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The Wire-Free Smart Motion Sensor adds programmable motion to Cync Smart Bulbs, Smart Switches and Smart Plugs. The sensor automatically turns lights and devices on when motion is detected in the room and turns them off when the room is unoccupied. The smart Bluetooth sensor connects wirelessly to Cync Smart Bulbs, Smart Plugs and Smart Switches to provide whole room motion control. The motion settings are adjustable so lights can come on slowly at nighttime or be set to deactivate during certain times. Set lights to turn on based on natural light and motion in the room. Pair with a Cync Smart Plug and automatically turn off devices like curling irons after you left the room. With a replaceable …
Price from $31.99 up to $34.99 
Compare prices and buy General Electric GE CYNC Smart Wire-Free Motion Sensor
$32.00
$35.00
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Cuisinart Cap-500 Pu RXium Countertop Air Purifier
Price from $199.95 up to $201.99 
Compare prices and buy Cuisinart Cap-500 PuRXium Countertop Air Purifier No Color CAP-500
$200.00
$200.00
$202.00
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The BRK SCO2B has both ion and electrochemical sensors with optipath 360 technology - patented technology providing 360 degrees of direct access to the smoke sensor. Ionization technology works best at detecting small particles, which tend to be produced in greater amount by flaming fires. Electrochemical sensing is the most advanced sensing in CO technology. This product offers two silence features for silencing unwanted alarms as well as silencing low battery chirps and allows offered latching to help indicate which unit went into alarm. A 9 V alkaline battery is included with this product and offers a 7-year warranty. *
$36.99
AceHardware.com
Delivery: USA
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AceHardware.com
The First Alert PRC710 smoke and carbon monoxide alarm with built-In 10-year battery features a photoelectric smoke sensor and an electrochemical carbon monoxide sensor. The photoelectric sensor detects larger smoke particles from smoldering fires from objects like cigarettes burning on furniture or in trash cans. The alarm features a loud, 85-decibel alarm, designed to wake even the soundest of sleepers. One button silences any nuisance alarms, and also tests detector functions, while lights indicate if the alarm detects smoke or carbon monoxide. The battery-operated smoke and CO detector can be installed easily, with no wires or electrician required, and its slim profile will seamlessly blend …
Price from $54.99 up to $72.75 
Compare prices and buy First Alert Battery-Powered Photoelectric Smoke and Carbon Monoxide Detect
$55.00
$73.00
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The First Alert Battery Operated Smoke Alarm features 2 alarms and provides the ideal defense for detecting fast flaming fires. Natural additions in the home or place of business, these smoke alarms utilize ionization technology that recognize and detect smoke as soon as it enters each unit's chamber. Ionization smoke detectors come equipped with a single test button that allow you to check the functionality of your alarm. The addition of a slide out battery drawer allows for quick and easy battery replacement. This 2-pack features a 10-year limited warranty.
Price from $17.49 up to $21.99 
Compare prices and buy First Alert 2pk SA300CN2 Battery Powered Smoke Detector
$17.00
$22.00
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