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    HighAlert™ - Door Stopper Alarm

    “HighAlert™ is perfect for protection whether you are at home, an apartment, or a hotel room. If anyone tries to open the door and come in, this will definitely wake everyone up, no matter how sound they are sleeping. Easy to install, no wifi needed, all you need to do is put it under the door. This is an absolute MUST-HAVE for anyone looking for an extra layer of security!”

    ⭐⭐⭐⭐⭐- Pauline Thompson
    Verified Buyer


    Having the necessary safety precautions at home is vital in protecting ourselves and our loved ones. A lack of home security encourages and allows people with evil intent to enter and cause harm to our property and well-being. Home invasion can result in devastating consequences, including robbery, and in the worst case scenario, harm to us and our loved ones.

    HighAlert™ is an innovative door stopper that features an alarm system to alert of any intruders and drive them away. The wedge-shaped design and non-skid pad prevent the door from being opened and the alarm emits an incredibly loud shrill sound to deter intruders. Experience peace of mind and security at night, free from the worries of intruders and our loved ones being harmed.



    DOOR STOPPER: HighAlert™ is designed in the shape of a wedge and features an anti-slip rubber pad on the bottom. The wedge and friction generated by the rubber effectively prevents any door from being fully opened, making it physically near impossible for intruders to enter.  

    ALARM SYSTEM: The built-in alarm system is activated when someone attempts to open the door HighAlert™ is wedged under. When activated, an extremely loud sound of 120 decibels is emitted, which not only alerts of intruders, but also startles and deters them from entering.

    EASY INSTALL: Unlike other complex security systems that take hours or even days to set up, HighAlert™ is designed for an easy install. Simply wedge HighAlert™ under any closed door and have instant peace of mind, without having to go through a complex setup process.

    VERSATILE FUNCTION: Designed for versatility and portability, HighAlert™ is extremely convenient to take along on travels. Beyond home security, this can be used when traveling and staying at places like hotels, bringing extra peace of mind in unfamiliar surroundings.

    ADJUSTABLE SENSITIVITY: HighAlert™ also features a switch to adjust the sensitivity at which the alarm will be activated. This allows for the alarm to be customized to fit each security need, maximizing its effectiveness while also reducing the chance of it being set off accidentally. 



    1. Insert a 9V battery into HighAlert™.

    2. Turn HighAlert™ on with the switch located on the back.

    3. Select the sensitivity with the switch on the side.

    4. Carefully wedge it under a door and experience true peace of mind!


    We understand how scary it can be to not feel 100% safe in our surroundings, especially at night while we are sleeping. It can be terrifying to feel powerless in the situation of home invasion and our loved ones being harmed! According to a study done by Rutgers University, installed alarm systems significantly deter residential burglaries and protect the home!

    HighAlert™ is the perfect solution for anyone looking for an easy way to instantly have peace of mind and security at night. This amazing home security device effectively prevents entry of intruders, ensuring safety and protecting family and loved ones. Say goodbye to sleepless nights and hello to serenity with HighAlert™ - the ultimate guardian of peace and security!



    Length: 5.8 in

    Width: 2.4 in

    Height: 1.8 in


    A Coastal Dawn Promise

    At Coastal Dawn, we believe in the quality of our products therefore we offer a 30-Day Money-Back Guarantee with no questions asked! When you purchase from us, there is ZERO risk for you!



    You’ve found a hidden discount code! Use code “FIRST10” at checkout to claim an additional 10% OFF your ENTIRE order!


    Customer Support:


    Phone: +1-(800)-460-7972