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Warning Alarms

A warning alarm is a device that alerts you to danger or an event before it occurs. These alarms are often used in industrial settings, but they can also be used to alert you to a fire, an intruder, or other emergencies. Browse the top-ranked list of warning alarms below along with associated reviews and opinions. 

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  1. Whirlpool - 19.6 Cu. Ft. Frost-Free Upright Freezer with Temperature Alarm - White

    SKU: J3KHV8G4SZ

    Great freezer and great price...Shipped fast and customer service was great....I love Best Buy!...Great freezer...Great freezerAnd one of the best investments that I could have made.

    Product Description

    A frost-free upright freezer in white featuring adjustable shelves, temperature alarm, and a secure child lock.
    See all Upright Freezers
    Your price for this item is $1,038.99
    Save $261
    The previous price was $1,299.99

  2. SimpliSafe - Water Sensor - White

    SKU: J3L6GWR5PW

    Water sensor best for peace of mind. Reasonable priced and definitely worth it....I love knowing I’ll be alerted anytime water might leak at my home....great water sensor...product was out of stock from...

    Product Description

    A white water sensor that alerts you instantly to leaks and integrates with SimpliSafe alarm monitoring.
    See all Water & Temperature Sensors
    Your price for this item is $20.99
    Save $9
    The previous price was $29.99

  3. SimpliSafe - Wireless Auxiliary Siren - White

    SKU: J3L6GWR598

    Great product. Simplisafe is the best and very reputable....Love this alarm system for my small home. Great price. Needed an added alarm for upstairs.

    Product Description

    A weatherized white wireless siren emitting a loud 105dB alarm for enhanced indoor or outdoor security.
    See all Security Camera & System Accessories
    Your price for this item is $59.99

  4. SimpliSafe - Panic Button - White

    SKU: J3L6GWR5SV

    Love the ease of this system...The very best alarm system.

    Product Description

    A white panic button that instantly triggers your security system’s alarm for emergency assistance or silent alerts.
    See all Door & Window Alarms
    Your price for this item is $19.99

  5. SPT - Jumbo Siren Indoor Strobe Box

    SKU: J3GTZG9CZV

    Product Description

    A weatherproof indoor siren with a flashing strobe light that alerts neighbors and deters intruders.
    See all Door & Window Alarms
    Your price for this item is $33.75

  6. SPT - Wired Mini Strobe Motion Alarm with Red LED Light (DC12V) (4-Pack)

    SKU: J3GTZG9CFP

    Product Description

    A compact wired alarm with a bright red LED strobe light for enhanced outdoor security and visual alerts.
    See all Door & Window Alarms
    Your price for this item is $32.00

  7. SPT - Wired Mini Strobe Motion Alarm with Red LED Light (DC12V) (2-Pack)

    SKU: J3GTZG9CF2

    Product Description

    A compact wired alarm with a bright red LED strobe for clear visual security alerts.
    See all Door & Window Alarms
    Your price for this item is $26.00

  8. SPT - Wired Mini Strobe Motion Alarm with Red LED Light (DC12V)

    SKU: J3GTZG9C5S

    Product Description

    A compact wired alarm with a bright red LED strobe light for enhanced outdoor security and deterrence.
    See all Door & Window Alarms
    Your price for this item is $17.00

  9. Defender - AI 4K Everwatch PTZ 360° Wi-Fi 6 Plug-in Security Camera, Color Night Vision, AI-Tracking, Easy Setup , 4 Pack - White

    SKU: J36J5TRYRT

    The guard pro ptz 2k qhd 360 are great! The way they track is great!...Great buy

    Product Description

    A white AI-powered 4K PTZ security camera system with 360° coverage, color night vision, and smart detection.
    See all Security Cameras & Surveillance
    Your price for this item is $109.99
    Save $250
    The previous price was $359.99

  10. Whirlpool - 31 in. Wide 17.7 cu. ft. SideKicks Refrigerator - Monochromatic Stainless Steel

    SKU: J3KHV8G46L

    love it!...I have had my sidekicks for 3 months now and I love them! Tons of room....The large shelves is great for storage and drinks...This unit has been working so far love the room great as extra...

    Product Description

    A monochromatic stainless steel refrigerator featuring electronic controls, glass shelves, LED lighting, and flexible storage options.
    See all Freezerless Refrigerators
    Your price for this item is $2,249.99
    Save $651
    The previous price was $2,900.99
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FAQ

This page features a variety of warning alarms, including smoke detectors, carbon monoxide alarms, water leak sensors, and combination units designed to provide alerts for multiple hazards.

Many warning alarms offered here are compatible with popular smart home platforms, allowing you to receive alerts on your phone and automate responses through connected devices.

Yes, several models include both loud sirens and flashing lights to ensure you are alerted in various situations, making them suitable for different environments and user needs.

Most warning alarms on this page are designed for easy DIY installation, with clear instructions included. However, some advanced systems may offer optional professional installation services.

Warning alarms available here use a range of power sources, including replaceable batteries, sealed long-life batteries, and direct plug-in options for continuous operation.