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    Fireking Magnetic Door & Window Contact Alarm - 110 Db - Audible - Window Mount, Door Mount - White (ps1033)

    Fireking Magnetic Door & Window Contact Alarm - 110 Db - Audible - Window Mount, Door Mount - White (ps1033)

    Magnetic door/window alarm with included batteries is only 2-1/2" long to discreetly protect your home or office from intruders. Magnetic sensor detects when opened to quickly signal when a break-in occurs. 110-decibel alarm delivers a loud alert... more

    $15.89

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    FireKing Magnetic Door & Window Contact Alarm - (1 Each) (Master), White (Plastic)

    FireKing Magnetic Door & Window Contact Alarm - (1 Each) (Master), White (Plastic)

    Magnetic window and door alarm protects your home or office from intruders. Magnetic sensor detects when opened to quickly signal when a break-in occurs. 110-decibel alarm delivers a loud alert signal to notify you and scare off potential intruders.... more

    $16.69

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    Overstock.com

    (625,000+)
    Dakota Alert Universal Transmitter, Model UT-2500

    Dakota Alert Universal Transmitter, Model UT-2500

    Free Gift Card w/ Order

    This Dakota Alert Universal Transmitter is a versatile accessory for your Dakota Alert DCR-2500 receiver sold separately. Features multiple methods of activation, including a push button for use as a panic alarm or doorbell. A magnetic contact also... more

    $39.99

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    (25,000+)
    Ge 45131 Wireless Alarm System (window Or Door)

    Ge 45131 Wireless Alarm System (window Or Door)

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door, window, back gate, or shed is opened.Features:Easy To Set Up & Easy To Use... more

    $41.51

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    Techko Maid S189D Ultra Slim Pool Safety Alarm with Extra Sensor, As Shown

    Techko Maid S189D Ultra Slim Pool Safety Alarm with Extra Sensor, As Shown

    The Techko S189D Ultra Slim Pool Safety and Entry Alarm is designed to sound a loud alert when a door or gate is opened- The magnetic contact sensors are installed on the gate or door you wish to secure- Once installed, it will allow adults to pass... more

    $27.90

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    Magnetic Sensor Home Door Window Entry Warning Alarm Switch Door Contact Magnet, White

    Magnetic Sensor Home Door Window Entry Warning Alarm Switch Door Contact Magnet, White

    Features: 1.Connection type: Normal close 2.Actuation distance:≥ 15 ≤ 25mm 3.Shape: Longilineal 4.Color: white 5.Size: 6.5 Package included: 1 x Mini Home Security Timber Door Magnetic Electric Bolt Lock more

    $4.90

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    3pcs Recessed Type Alarm Contacts Magnetic Sensor Switch White for Door Window

    3pcs Recessed Type Alarm Contacts Magnetic Sensor Switch White for Door Window

    Switch Type: NO(normal open type), circuit is connected when magnet is near the switch. The reed switch is an electrical switch operated by an applied magnetic field. Designed for use with alarm systems. Great for use in family and factory window,... more

    $7.02

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    Wireless 4-Channel Door Bell and Alert Kit

    Wireless 4-Channel Door Bell and Alert Kit

    Free Shipping on Over 500K Items!

    The Hampton Bay Wireless 4-Channel Door Bell and Alert Kit keeps you informed and help give peace of mind. You hear a unique sound and see which alert is activated on the alert base. The motion sensor alerts you when motion is detected and the magnetic... more

    $39.97

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    Magnetic Sensor Home Door Window Entry Warning Alarm Switch Door Contact Magnet

    Magnetic Sensor Home Door Window Entry Warning Alarm Switch Door Contact Magnet

    Features: 1.Connection type: Normal close 2.Actuation distance: ? 15 ? 25mm 3.Shape: Longilineal 4.Color: white 5.Size: 6.5" Package included: 1 x Mini Home Security Timber Door Magnetic Electric Bolt Lock more

    $4.90

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    5 Pcs NO Roller Shutter Door Contact Sensor Alarm Magnetic Reed Switches 50-70mm

    5 Pcs NO Roller Shutter Door Contact Sensor Alarm Magnetic Reed Switches 50-70mm

    Screw surface mount contact, metal housing. 50cm long wire lead. Comes with four installation screws. Switch type:NO(normal open type), circuit is connected when magnet is near the switch. Great for use in family and factory window, door. etc. For... more

    $58.99 $29.47

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    Dakota Alert UTDCR-2500 Door Entry Transmitter & Receiver Kit UTDCR-2500

    Dakota Alert UTDCR-2500 Door Entry Transmitter & Receiver Kit UTDCR-2500

    Free Shipping! Dakota Alert UTDCR-2500 Door Entry Transmitter & Receiver Kit Wireless Door Entry Alert System, Transmitter with Window/Door Contact, Includes Indoor Receiver & Power Supply, 2500 ft Wireless Range, Receiver Chimes When Door Opens,... more

    $74.99

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    (300,000+)
    ALC Connect Magnetic Door/Window Sensor

    ALC Connect Magnetic Door/Window Sensor

    Free Shipping on Over 500K Items!

    Easily install the peel-and-stick devices by attaching to any door or window and its frame. When Wireless Security System is armed, the 2-Piece sensor triggers an alert in the event of a breach. Add more sensors to your ALC Connect Wireless Security... more

    $19.95

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    Techko Maid S183 Magnetic Sensor Entry Alarm and Chime

    Techko Maid S183 Magnetic Sensor Entry Alarm and Chime

    Find Home Security and Automation at Target.com! Protect your peace of mind with a Techko Maid S183 Magnetic Sensor Entry Alarm and Chime. This security alarm uses a magnetic sensor to alert you when a door or window is being opened at your home. You... more

    $13.89

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    Simple Home XHS7-1003-WHT WiFi Smart Door and Window Sensor White

    Simple Home XHS7-1003-WHT WiFi Smart Door and Window Sensor White

    Secure your home and get instant push notifications on your smartphone when a window or door equipped with this Simple Home sensor is opened. no Simple Home hub required works off your WiFi network magnetic sensor alerts you when a window or door is... more

    $49.99

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    (25,000+)
    Alarm Shield - by Oplink Security

    Alarm Shield - by Oplink Security

    Plug-and-play wireless security system Expand the system to fit your security needs 24/7 email and push notification alerts. Mobile app available for iOS, Android and Microsoft Multi-user access + emergency contacts can receive alerts. Includes 2 door/... more

    $154.96

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    Overstock.com

    (625,000+)
    "MC4 Recessed Magnetic Contact, 3/4"" dia. SPDT"

    "MC4 Recessed Magnetic Contact, 3/4"" dia. SPDT"

    "Door Status Sensors Magnetic door contacts and electromechanical ball switch assemblies provide a means of monitoring door status." more

    $30.00

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    new Mini Magnetic Contact Alarm and Chime (4 Pack) protect your home

    new Mini Magnetic Contact Alarm and Chime (4 Pack) protect your home

    At only 2 1/2 inches long this economical alarm inconspicuously protects your home from intruders. This unit uses a magnetic sensor to detect the opening of a protected door or window. A 90dB alarm or a chime will then alert you to an attempted entry... more

    $21.95

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    Skylink Household Alert WD-318 Door/Window Alert Kit

    Skylink Household Alert WD-318 Door/Window Alert Kit

    Door/window sensor set. Magnetic type contact sensor. Notifies you when your door or window is open. Supervised Sensor: monitors the sensors and their battery condition automatically. GM-318R can work with up to 4 sensors. (additional sensors sold more

    $25

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    Visonic MCT-302 Wireless Transmitter

    Visonic MCT-302 Wireless Transmitter

    For: All Visonic PowerCode Wireless Panels and Receivers more

    $42

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    Wireless door magnetic contact

    Wireless door magnetic contact

    Open area security door and window safety magnetic switch more

    $5.90

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    GVI-MAG magnetic sensor alarm door contac

    GVI-MAG magnetic sensor alarm door contac

    Surface mount Magnetic Reed contact sensor Used as an optional alarm trigger For use with doors and windows Easy to install. more

    $10.00

    FREE shipping

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    Fireking PS1033 Door/Window Alarm, Magnetic, White

    Fireking PS1033 Door/Window Alarm, Magnetic, White

    Magnetic window and door alarm protects your home or office from intruders. Magnetic sensor detects when opened to quickly signal when a break-in occurs. 110-decibel alarm delivers a loud alert signal to notify you and scare off potential intruders.... more

    $11.85

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    Intermatic Intermatic Magnetic Contact Alarm with Keypad

    Intermatic Intermatic Magnetic Contact Alarm with Keypad

    This compact, easy to install magnetic contact alarm made by Intermatic (a recognized leader in the security industry) can be used on doors, windows- anything that opens and closes. It is an ideal security device for home, store, office, etc. If the... more

    $8.96

    FREE shipping

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    Ge 45131 Wireless Alarm System (window Or Door)

    Ge 45131 Wireless Alarm System (window Or Door)

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door, window, back gate, or shed is opened.Features: Easy To Set Up & Easy To Use... more

    $41.51

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    Peazz

    (100+)
    Ge 45131 Wireless Alarm System (window Or Door)

    Ge 45131 Wireless Alarm System (window Or Door)

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door, window, back gate, or shed is opened.Features:Easy To Set Up & Easy To Use... more

    $41.51

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    SimpleHome XHS7-1003-WHT Wi-Fi Door/Window Sensor

    SimpleHome XHS7-1003-WHT Wi-Fi Door/Window Sensor

    Magnetic sensor sends alerts when a window or door is opened Sends push notifications Ability to create actions with other Simple Home products to turn off when magnets are separated Installs in seconds with included double-sided tape Runs on AAA... more

    $51.95

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    Enerwave ZWN-BDS-W - Z-Wave Magnetic Door/Window Sensor

    Enerwave ZWN-BDS-W - Z-Wave Magnetic Door/Window Sensor

    The ZWN-BDS is a battery-powered magnetic contact sensor that wirelessly controls lights and appliances throughout your home. When the magnetic contact is interrupted, such as a door or window being opened, the ZWN-BDS transmits Open/Close status to... more

    $37.99

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    Vera EVS-HSM02-US Everspring Door and Window Sensor with Z-Wave Compatibility White EVS-HSM02-US

    Vera EVS-HSM02-US Everspring Door and Window Sensor with Z-Wave Compatibility White EVS-HSM02-US

    App Compatibility: This Everspring Door / Window contact detector installs easily and blends in with any decor. Opening the protected door/window will remove the magnetic field and trigger the detector. If armed, the sensor will generate an alarm... more

    $49.99 $23.95

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    HandleSets.com

    (10,000+)
    SECURITYMAN SM-002M IWATCHALARM Door/Window Sensor - MCYSM002M

    SECURITYMAN SM-002M IWATCHALARM Door/Window Sensor - MCYSM002M

    Add-on magnetic door/window sensor for IWATCHALARM series; Works with the host of any IWATCHALARM system ; Magnetic contact sensor for doors Power: 1.5V ; 1 red LED indicator lights when door/window is open; Transmits at 433MHz wireless frequency with... more

    $55.95

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    "Contact Exit Alarm"

    "Contact Exit Alarm"

    "The ST-10 door control/exit alarm was designed as an inexpensive way of controlling unlocked back-doors, front doors, or other areas you want to monitor. It alerts you every time an unauthorized exit is being made by playing a loud (95db) siren until... more

    $44.98

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    Ge Wireless Alarm System For Window Or Door

    Ge Wireless Alarm System For Window Or Door

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door, window, back gate, or shed is opened. Easy To Set Up & Easy To Use Indicates When... more

    $34.99

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    "MS-1039S Detex Surface mount contact"

    "MS-1039S Detex Surface mount contact"

    "MS-1039S Detex Wire leads included white color These magnetic switches are designed primarily to be used as sensing devices to detect the opening of a door or windowProduct page is for the surface contact on the right hand side of picture above, not... more

    $36.00

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    SimpleHome XHS7-1003-WHT Wi-Fi Door-Window Sensor

    SimpleHome XHS7-1003-WHT Wi-Fi Door-Window Sensor

    SimpleHome XHS7-1003-WHT Wi-Fi Door/Window SensorSpecifications: Magnetic sensor sends alerts when a window or door is opened Sends push notifications Ability to create actions with other Simple Home products to turn off when magnets are separated... more

    $42.99

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    SECURITYMAN SM-002M IWATCHALARM Door-Window Sensor

    SECURITYMAN SM-002M IWATCHALARM Door-Window Sensor

    SECURITYMAN SM-002M IWATCHALARM Door/Window SensorSpecifications: Add-on magnetic door/window sensor for IWATCHALARM series Works with the host of any IWATCHALARM system Magnetic contact sensor for doors & windows Power: 1.5V 1 red LED indicator lights... more

    $38.99

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    Ge Wireless Alarm System For Window Or Door

    Ge Wireless Alarm System For Window Or Door

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door window back gate or shed is opened.Easy To Set Up & Easy To Use Indicates When... more

    $32.79

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    Skylink Household Alert WD-318T Alert System

    Skylink Household Alert WD-318T Alert System

    Door Sensor, Window Sensor more

    $23

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    Ge Wireless Alarm System For Window Or Door

    Ge Wireless Alarm System For Window Or Door

    The weather-resistant Window/Door Sensor features an easy-to-install magnetic contact that can be discreetly placed on most windows and doors to alert the user if a door window back gate or shed is opened. Easy To Set Up & Easy To Use Indicates When... more

    $32.40

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    VC7151-109 Connected Home Phone with Garage Door Sensor

    VC7151-109 Connected Home Phone with Garage Door Sensor

    Garage door sensor included, Receive alerts on your home phone when your garage door opens. Open/closed sensor included, Know if important areas are secure with magnetic sensors you can put almost anywhere, including windows, doors and medicine... more

    $119.95 $100.67

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    PROVANTAGE

    (50,000+)
    Linear Z-wave Wireless Door And Window Sensor

    Linear Z-wave Wireless Door And Window Sensor

    wireless Z-wave Door Or Window Sensor Internal Magnetic Switch Contact & Magnet External Normally Closed Contact Input Tamper Switch Powered By Cr123a Lithium Battery Internal Reed Switch External Switch Support 100ft Line-of-sight Range anti-tamper... more

    $49.00

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    SLAW2200B Mini Door and Window Alarm - Black

    SLAW2200B Mini Door and Window Alarm - Black

    Using magnetic affinity to initiate its 110db siren, this door and window alarm will alert you when ever a sliding door or window is opened.The magnetic base of the alarm screws to your frame while the alarm actuator connects to your door or... more

    $6.95

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    More information about Home Security

    Best prices on Alert magnetic contact door in Home Security. Check out Bizrate for great deals on popular brands like 0 and Dakota Alert. Use Bizrate's latest online shopping features to compare prices. Read product specifications, calculate tax and shipping charges, sort your results, and buy with confidence. Easily narrow your search and find the product that's perfect for you.