Door Alarms

You would think that door alarms would be expensive, but they’re not. Some of these systems run under $30! They can be connected to an alarm and your phone via Wi-Fi. Door alarms are a key component of a secure building. When kids can leave without you knowing it, the building is neither safe nor secure. There should only be one primary entrance where youths check in and check out. Every other exterior door should have an alarm.
Some kids will test your security system for any “cracks,” and will take full advantage of them. A secure teen center will have locks on every door, and every door out of view of the security camera should be kept locked. An unsecured side room, out of the view of a camera, is a recipe for trouble. In contrast, when you keep doors locked and secured, you may have no idea of the trouble that you avoided.
Check out this Best Door and Window Alarms article by This Old House to make an informed decision.
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Showing 1–15 of 26 results

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    10 Sets Pack of Wired Alarm Door and Window Sensors

    $17.99 Add to cart

    Suitable for wooden/glass/plastic material doors

    Home burglar alarm systems, are important kits of home security.

    Screws terminal connection inside, easy for mounting and connecting to systems.

    Surface mounted with double side tape, ≥ 15mm operation gap

    NC type, normally closed: Switching OFF when the door is opened

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    120 DB Loud Door and Window Open Alarm Sensor 3 Pack

    $19.99 Add to cart

    LOUD ALARM: The 120 DB security alarm is perfect for signaling to you when there is an unwanted entry. Audible at over 750 feet it sounds loud so the person knows they should stop what they are doing. Great for prevention, protecting your children’s rooms, or stop anyone from sneaking out or in.

    WIRELESS ALARM SENSOR: No wiring is necessary and 3 LR44 batteries are included in each device. Made to last 6 – 12 months these batteries in the alarms will be charged for extended periods of time. When it’s time to change, you’ll know. With the intuitive low battery indicator, you can easily find out when you’ll have to change the batteries.

    EASY TO INSTALL: The wireless security alarms can be installed anywhere with an opening. Simply use the adhesive provided and tape it to wherever you need it! Windows, doors, and entrances are simple and straightforward with the alarm. The minimum distance for the device to work is 15mm (0.6 inches), so when installing make sure to get both pieces of the alarm as close as possible.

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    Doohickey Perfect Alarm, Security System

    $9.95 Add to cart

    Great Protection – Protect you and your family against home invasions. The piercing alarm deters intruders from trying to break in. Also protects children and pets trying to go out.
    Magnetic Sensor – This personal home security system comes with a magnetic sensor that triggers a piercing alarm when it detects a door, cabinet, window, or drawer has been opened.
    Easy to Install – Features include an easy-to-use ON/OFF switch on the side of the alarm to let you decide your preferred times to have it ON or OFF. Designed for your home needs.

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    Door Chime Bistee Wireless Door Alarm Contact Sensor

    $29.98 Add to cart

    🔔 58 MELODIES & 5 VOLUME: The doorbell features 58 chimes and 5 levels of adjustable volume(0 dB to 110 dB) to meet your needs for different occasions. LED indicators of the doorbell chime are suitable for the elderly and hearing impaired. Remembers your last melody and volume level after a power outage; no need to reset to your previous settings.

    👍 150 M/600 FT OPEN AREA RANGE: Door chime signal can easily cross through doors or walls, ensuring you will never miss a visitor, even if you are a few rooms away or on another floor. Note: The battery level will affect the signal-receiving range. It is recommended to change it once every 12 months.

    👍 EXPANSION SYSTEM: The door/window door sensor will detect every entry and send an alarm warning to the doorbell chime receiver to better protect your place. You will hear the doorbell chime to remind you when someone opening your door/window or your pet coming home. Each door sensor or receiver can be expandable for business, home, apartment, classroom, office, basement, and more.

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    Door Chime, Besimlive Wireless Alarm Contact Sensor

    $20.99 Add to cart

    🛠️【Easy to Install】The receiver and sensor are already paired. Attach the sensor to the door or window (the installation distance should be less than 0.4 in), and plug the receiver into any standard outlet to complete the installation. (It is recommended to change your favorite ringtone BEFORE installation; please refer to the video or user manual.)

    🛡️【24/7 Family Lifeguard】This child/home door sensor provides 7×24 protection by alerting you when a burglar opens the door or window, effectively deterring break-ins. The entry alert chime activates when the magnetic sensor separates.

    📶【1,000 ft Long Range】The wireless door open alarm for home security has a range of up to 1,000 ft in open areas. When a door or window is opened, the door sensor automatically triggers instant alerts on the receiver. It can also be used as a doorbell for your retail shop or commercial space, ensuring that you never miss any customers or visitors.

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    Door Chime, Daytech Wireless Sensor, 1000 ft Range

    $34.99 Add to cart

    【Daytech】-We specialize in the design and production of security products. Especially in DOOR CHIME, this door chime has been tested tens of thousands of times for longer life to meet basic daily needs. You need a durable door chime, Not a one-month door chime.

    【Easy to Install】-Wireless door sensor chime is easy to set up. The sensor and receiver are paired already. Just plug the doorbell receiver into any standard outlet, tear the double-sided adhesive tape off the door sensor, and stick them to the door or window is fine.

    【Built to Last】-New upgraded door sensor chime. Designed with ultra-low power design, the Daytech door sensor chime allows the battery to last up to 11000 times. Our door opening alert chime is made of ABS material more sturdy and durable.

    【Long Range & Expandable】-Daytech Door Chime Wireless Door Sensor has a 1000ft operating range. It meets the needs of long-distance and multiple pairings for homes, businesses, and stores. All Daytech brand door entry chimes and sensor alarms can be paired with each other. Each door-opening chime for business can be paired with an unlimited number of sensors.

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    Door Chime, Door Sensor Chime, 500ft Operating Range

    $22.35 Add to cart

    [Out of the Box] This door chime has been paired before delivery. No need for wiring or electrician installation: simply plug the receiver into the socket and tear off the double-sided adhesive from the back of the door sensor, then stick them to the door, and you’re ready to go.

    [Ease of Use] The door sensor chime is equipped with 52 different chime options and five volume levels, so you can create a comfortable environment for your family. The door chime also features LED indicators that work together with the sound so you can notice it quickly.

    [How it Works] These door-opening chimes feature a magnetic strip that is automatically triggered by the receiver when it’s separated. The receiver instantly alerts the person in charge by playing one of the chimes.

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    Door Sensor, Wireless Door Alert Chime Kit

    $25.99 Add to cart

    🔔【How Does Door Sensor Alarm Kit Work?】- Attach 2 sections of the sensor to a door/window frame. When you open the door, it will trigger the alarm unit and ring.
    🔔【Multiple Ringtones】600 FT in OPEN AREA RANGE- 58 Ringtones & 5 Level Volume (0 dB to 110 dB) to Adjust. LED indicators are suitable for the elderly and hearing impaired
    🔔【Wireless Door Entry Alert Chime System】- Wireless Door Entry Bell Alert System- Will Keep track of your little children, used for a home to alert you when someone opens the door; Also use for garage/office/retail store.

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    Door Window Alarms,120DB Security Burglar Alarms

    $32.99 Add to cart

    120DB DOOR WINDOW CHIME ALARMS – the security chime alarm is accurately tested at about 120db, a good security alarm perfect for a home, office, store, hotel, garage, drawer, cabinet, and fridge.
    2 IN 1 NEW ALARM – Turn to “ALARM” switch: Constant Alarm (alarm rings sounds continuously until the door/window is closed); Turn to “CHIME” switch, the alarm will be a good chime reminder for home, fridge, or store.
    EASY TO INSTALL – Just peel off the tape, then stick the alarm to the windows, doors, or wall, then all is done, won’t cause much damage to your doors or wall. No wiring, screws, or tools are needed! Economic and practical security alarms for your home security.

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    GE Personal Security, Window and Door Alarm, 12 Pack

    $46.38 Add to cart

    The GE-branded Personal Security Window and Door Alarms provide a simple-to-use, cost-effective security solution to protect against home invasions. The up to 120-decibel alarms are loud enough to make a would-be intruder think twice about entering through your doors or windows. Each alarm features an easy-access CHIME/OFF/ALARM switch — this straightforward design makes your security setup intuitive and streamlined. With no wires required for installation, protecting an entry point is as easy as mounting the alarm using the included double-sided tape. When a door or window is opened the alarm’s base becomes separated from its magnet, triggering a gentle chime or ringing alarm. Powered by 4 LR44 batteries (included), the LED indicator on the front will notify you when power is low. This set of GE-branded Personal Security Window and Door Alarms is perfect for homes, apartments, dorm rooms, offices, RVs, campers, and much more.

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    GE Security Window and Door Alarm, 4 Pack, Wireless

    $19.73 Add to cart

    The GE-branded Personal Security Window and Door Alarms provide a simple-to-use, cost-effective security solution to protect against home invasions. The up to 120-decibel alarms are loud enough to make a would-be intruder think twice about entering through your doors or windows. Each alarm features an easy-access CHIME/OFF/ALARM switch — this straightforward design makes your security setup intuitive and streamlined. With no wires required for installation, protecting an entry point is as easy as mounting the alarm using the included double-sided tape. When a door or window is opened the alarm’s base becomes separated from its magnet, triggering a gentle chime or ringing alarm. Powered by 4 LR44 batteries (included), the LED indicator on the front will notify you when power is low. This set of GE-branded Personal Security Window and Door Alarms is perfect for homes, apartments, dorm rooms, offices, RVs, campers, and much more.

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    GE Window and Door Alarm, 2 Pack, Wireless

    $13.16 Add to cart

    The GE Personal Security Window/Door Alarms provide a simple-to-use, cost-effective security solution to protect you and your family against home invasions. The up to 120-decibel alarms are loud enough to make a would-be intruder think twice about entering through your doors or windows. The alarms are also extremely easy to use. The window/door alarms feature a contemporary design with easy access buttons and controls for simple operation. This straightforward concept makes using the GE Personal Security Window/Door Alarms intuitive, no matter what your technological skills may be. With no wires required for installation, protecting any window or door in your home is as easy as attaching the alarm to your window or door with double-sided tape (included). Each window alarm features an on/off/chime switch for easy operation and a low-battery test button for checking battery life.

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    GRSICO Wireless Alarm Kit 9 Piece, WiFi, Works with Alexa

    $79.99 Add to cart

    GRSICO WIRELESS ALARM SYSTEM: A great do-it-yourself alarm system fit to protect your house. The smart WiFi alarm 9-piece kit includes 1 alarm siren station, 1 keypad, 4 windows & door sensors, 1 motion detector, and 2 remote controls.

    Easily DIY Installation: Set up the alarm system in minutes all by yourself making home security easier. The entry sensors attach to doors and windows, while the motion sensor can be secured to walls via the included mounts.

    Remote Control: Wherever you are, you can control and monitor your smart alarm system on the Smart Life App anytime, such as arm/disarm your home remotely, and personalized Entry, and Exit Delay. A great way to get started in whole-home protection for your house or apartment.

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    HENDUN Wireless Door Window Alarm with Remote, 2 Pack

    $21.59 Add to cart

    Easy to install and operate – pool/gate/sliding door alarm with remote.

    Multi-purpose – magnetic contact door alarms/doorbell chime/door alarm for pool/fridge door alarm/prying door alarm

    Keep remote in sync – More than one remote sensor can be synchronized. Extra remote ASIN B084VTYF51!

    Magnetically triggered – alarm sounds when window or interior door is opened by kids elder & dementia patients.

    Prevent any mishap – keep toddler away from cabinets, ground pool,Monitoring wandering, sleepwalking, elderly.

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    Hiistar Window & Door Alarm Bell | Wireless | 10 Pack

    $17.99 Add to cart

    The Hiistar Personal Security Window/Door Alarm provides a simple-to-use, cost-effective security solution to protect you and your family against home invasions thanks to the 120-decibel alarms,
    loud enough to make a would-be intruder think twice about entering through your doors or windows.

    The alarm is also extremely easy to use.
    The window/door alarms feature a contemporary design with easy access buttons and controls for simple operation.

    This straightforward concept makes using the Hiistar Personal Security Window/Door Alarm intuitive, no matter what your technological skills may be.