Best Warning Alarms 2026

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Last Updated - 03.02.2026

Best Choice

01

urban

Urban Security Brake Disc Lock Alarm 120 dB Warning Diameter 6 mm Metallic Universal Moto and Scooter.

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16% Off
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Warning function - theft warning function differs from the theft warning function to save inconvenience and extend battery life. With the built-in electronic alarm clock, you don't have to waste time with the memory cable.
Replaceable alarm module, very waterproof, no false alarms and durable lithium battery.
Metal body and belly lid to make it easier Dual function, you can use it with or without alarm.
Double alarm signal: with a very useful LED light button for dark places as well as the powerful 120 dB alarm. Sec "click" quick-release, with 6-axis steel shaft, universal scooter, electric bicycle etc. Corrosion protection treatment. Made in Europe for better quality and customer approach. 2 universal steel brackets are available for safe transport. (Do not transport the anti-theft device in a fabric backpack, as it is dangerous for you and other drivers.)
Anti-theft disc with alarm and warning, 120 dB and 6 mm shaft for the outer holes of the disc. (If you have larger holes in the disc, a 10 mm shank with double closure is better than the approved Urban Ur10)

50,43 € 60,00 €(16% Off off)
02

Firlarm

Firlarm - Gas Detector for the Household, City Gas, Methane Propane Butane Natural Gas, LPG, City Gas Alarm, Flammable Gas Warning Detector, Plug-in

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9.6

Exceptional

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We are here for you: If you have any questions about the product, we always offer professional support.
Test method: press and hold the test button on the device and slowly release gas (do not use fire!). The alarm sounds when the threshold is reached and stops when returning to safe level. (Note: 2-3 minutes preheating time required.)
Real-time monitoring: 24 hours monitoring When exceeding 3% LEL (lower explosion limit), the device immediately activates an 85 dB loud alarm with red flashing light. The alarm level adapts to the gas concentration.
Plug and Play: With standard EU plug for easy installation. Housing made of flame retardant PC material. Energy consumption below 2 watts.
Installation recommendations Avoid dusty, greasy or humid environments to avoid false alarms. Choose a suitable location for optimal detection.
EN 50194 CERTIFIED Our gas detector is EN 50194 certified and detects natural gas, LPG (LPG) and city gas. Suitable for kitchens, apartments, villas, hotels and RVs.

24,99 €
Value for Money

03

Smartwares

Smartwares Carbon Monoxide Detector, 10 Year Sensor, 1.5 Test Winner Rating, with Display and Test Button - FGA-13041

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23% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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TEST BUTTON Make sure your device is working properly by testing it regularly (once per month). If your CO detector beeps 5 times during testing, it will work fine.
Effective protection against carbon monoxide (CO): this detector with a range of 20 to 40 m² has an electrochemical sensor that detects the CO in the air, even with a small amount (approx. 27 ppm).
Easy to install: the necessary mounting material is included. Install one CO detector per floor, near your combustion equipment and near rooms. Make sure the alarm of 85 dB is audible by everyone.
DISPLAY: The display of the carbon monoxide detector shows you the CO concentration (PPM) and shows possible malfunctions: batteries or device at the end of life, incorrectly installed.
10 years sensor: the sensor of this CO detector has a service life of 10 years. The detector is powered by 3 AA batteries which are included. You will be warned by bright and acoustic signals that you need to change the batteries or replace your device.

17,99 € 23,49 €(23% Off off)
04

Smartwares

Smartwares Carbon Monoxide Detector, 10 Year Sensor, 1.5 Test Winner Rating, with Display and Test Button - FGA-13041

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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TEST BUTTON Make sure your device is working properly by testing it regularly (once per month). If your CO detector beeps 5 times during testing, it will work fine.
Effective protection against carbon monoxide (CO): this detector with a range of 20 to 40 m² has an electrochemical sensor that detects the CO in the air, even with a small amount (approx. 27 ppm).
Easy to install: the necessary mounting material is included. Install one CO detector per floor, near your combustion equipment and near rooms. Make sure the alarm of 85 dB is audible by everyone.
DISPLAY: The display of the carbon monoxide detector shows you the CO concentration (PPM) and shows possible malfunctions: batteries or device at the end of life, incorrectly installed.
10 years sensor: the sensor of this CO detector has a service life of 10 years. The detector is powered by 3 AA batteries which are included. You will be warned by bright and acoustic signals that you need to change the batteries or replace your device.

12,09 €
05

DGSFFHFSD

Carbon Monoxide Alarm with LCD Display CO Detector Louder 85 dB Alarm Carbon Monoxide Detector with Carbon Monoxide Sensor Carbon Monoxide Alarm Battery Operated

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20% Off
8.9

Very Good

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Warranty and customer service: DGSFFHFSD specializes in the development and production of carbon monoxide alarms. We offer 30-day return policy and long-term customer service. Your satisfaction motivates our team. If you have any further questions, please contact us directly.
Safe sensors, clear alarm: the carbon monoxide detector uses particularly sensitive sensors. So you measure CO densities in their ambient air continuously. Reach concentrations corresponding limit values, give CO detectors h?rbaren alarm. Mostly flashing LEDs attract your attention.
Robust operation of the sensor: the CO gas detector is made of durable and high quality. High performance sensor, which is sensitive and durable. The operating temperature is 5 °C / 40 °C, and the appropriate relative humidity is 20-90%.
LCD display with CO concentration display: carbon monoxide as a daily respiratory poison you do not perceive with your natural senses. Thanks to the LCD display, you can read and monitor the CO concentration at any time as well as avoid the occurrence of hazards.
Battery operation: the CO detector uses the replaceable batteries (2 x 1.5 V AA). Even more convenient, integrated power cells ensure many years of operation. A chirping every 30 seconds indicates that the battery is low, then you have to replace it. (Batteries not included)

16,79 € 20,99 €(20% Off off)
06

Thopeb

The Original Self-Defence Siren Keyring for Women, Personal Alarm and Keyring for Women, Safety Alarm with Strobe Light and Keyring, Bright Colours (Azure)

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21% Off
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Your personal safety device: Get the help you need quickly. Commonly used by seniors to call for help in case of falls, feeling unsafe, physical threat, medical emergency, accident or allergic reactions. A great gift for parents, students and anyone who works in the evening. A wonderful defence siren keychain for women.
Self defence keychain suitable for everyone: The personal alarm keyring from Thopeb provides safety for your loved ones. With this keyring you will be noticed and get help, no matter what situation. If you are threatened, activate the siren of Thopeb. It sounds a loud siren and a flashing strobe light to distract the attacker and prevent an attack.
SOS LED Light with alarm: Requires no training or skill to operate. Equipped with high-intensity LED lights. Extremely loud (longest range up to 300 m distance). Military grade durability (weatherproof). Equipped with a CR2032 battery for durability and long life.
Peace and love: Thopeb is committed to providing a safe and effective alarm device for self-defence. In an emergency, the victim must have the opportunity to call for help. Protect yourself in a moment of need with the self-defence siren.
Modern design, easy to use: This self-defence keychain for women requires no training or skills to operate it. To activate, simply remove the top pin. To deactivate, simply insert again. The alarm can be used multiple times. The batteries are replaceable and last 40 continuous minutes.

18,95 € 23,95 €(21% Off off)
07

TECKNET

TECKNET Pocket Alarm for Women, 135 dB Personal Alarm, IPX4 Rechargeable Siren with Key Ring, Loud Alarm for Women on the Go, Children, Seniors, Black

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31% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Self-defence women and pocket alarm: This night running alarm has been specially designed for night protection. In case of solo or emergencies, double click the button to activate a 135 dB high frequency alarm. The penetrating alarm can be heard within a radius of 50 metres, warns bystanders and deters potential dangers. Instant emergency alert for more reassurance.
Rechargeable: The pocket alarm for women is fully charged in just 1.5 hours. The durable 300mAh battery minimizes frequent charging and saves you time. When charging is low, the pocket alarm warns of the low battery level by three short beeps and a flashing white light. Easy charging with the included charging cable - Red light indicates charging, green light signals the fully charged state.
Perfect gift: the TECKNET pocket alarm for runners is an indispensable companion for self-defence women. As an ideal gift, it offers your sisters, daughters, mothers, girlfriends or colleagues a soothing sense of security. Even if this self-defence keyring alarm is crucial for protection, we sincerely hope that you never have to activate it. The shrill alarm comes with a 36-month warranty so you can use it with confidence.
IPX4 waterproof: the pocket alarm for women has an IPX4 certification, which guarantees reliable performance even when wet. The pocket alarm is protected against splashes of water on all sides and is therefore ideal for outdoor use in rain, snow or damp environments. The durable design protects against moisture and accidental spills, so you can use it in any weather without hesitation.
Easy to carry: Weighing only 34 grams (1.2 ounces), the pocket alarm for women can be easily attached to your clothes or bag - whether on your pocket, waistband, collar, hat or backpack for hands-free use. Its ultra-light and portable design ensures an effortless wearing experience. The siren comes with a key ring, so you can easily attach it to your keychain.

10,99 € 15,99 €(31% Off off)
08

TECKNET

TECKNET Personal Alarm for Women, Pocket Alarm with 130 dB Siren and LED Signal Light, USB Type-C Rechargeable Self Defense, Personal Alarm, Children, Elderly, Night Shift

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Two Convenient Activation Methods】This female personal security alarm has two trigger mode: Mode 1: By pulling the top plug, the alarm is triggered and the light will flash immediately, which is suitable for quick escape and maximum alarm. Stop by simply inserting the plug back. Mode 2: hold down the back button to respond quickly, you can hide the security alarm keychain in the bag, more suitable for hiding the alarm, you can stop when you long press again. It helps you seek help in an emergency and deter attackers.
USB rechargeable: when the battery of the safety alarm is low, it can be charged with a Type-C USB cable (included). The light turns red when the battery is charged and turns off when fully charged. One charge is enough for 500 days of standby operation without having to replace the battery.
Multifunctional LED light, 130 dB super loud volume: If you are in danger or need help, trigger the alarm. The LED light of the pocket alarm flashes and the 130 decibel loud personal alarm protects you and helps to find you faster. The bright LED light can also be used as an emergency light source and is useful when travelling, hiking, camping or walking your dog at night.
Intelligent and portable design: Personal alarm with key ring, small and beautiful appearance, can be disguised as a decorative element, small and inconspicuous, can be seamlessly attached to handbags, backpacks, belts, keys, etc. and can be used immediately. You can take it anywhere and ensure safety is always within reach.
36 months support: If you encounter any problems when using your personal alarm, please feel free to contact us. Our professional customer service team offers you 36 months warranty (only for registered users) and professional customer service.

10,99 €
09

Thopeb

The Original Self-Defence Siren Keyring for Women, Personal Alarm and Keyring for Women, Safety Alarm with Strobe Light and Keyring, Helps the Elderly

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24% Off
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Your personal safety device: Get the help you need quickly. Commonly used by seniors to call for help in case of falls, feeling unsafe, physical threat, medical emergency, accident or allergic reactions. A great gift for parents, students and anyone who works at night. A wonderful defence siren keychain for women.
Super long-lasting battery: The alarm can be used multiple times. Batteries are replaceable and last 40 continuous minutes. Each birdie alarm is hand-tested and durable. 365 days battery life. Waterproof.
Personal alarm keychain suitable for everyone: The personal alarm keyring from Thopeb provides safety for your loved ones. With this keyring you will stand out and get help in any situation. When threatened, activate the loud Thopeb siren and flashing strobe light to distract the attacker and prevent an attack.
Peace and love: Thopeb is committed to providing a safe and effective alarm device for self-defence. In an emergency, the victim must have the opportunity to call for help. Protect yourself in an emergency with the self-defence siren. Thopeb, minimum gain, maximum quality.
Modern design, easy to use: This self-defence keychain for women requires no training or skills to operate it. To activate, simply remove the top pin. Simply put it back in to deactivate. 24/7 emergency security alarm. Easily attaches to keys, purses, backpacks or belts. Small and discreet.

18,95 € 24,98 €(24% Off off)
10

Qoosea

Emergency Personal Alarm [3 Pack] Qoosea Scream Safesound Alarm 140dB LED Flashlight for Kids/Women/Elderly/Student Self Defense Protection Secured (Black+Silver+Purple)

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

️[LED mini torch] - The emergency alarm can also be used as an LED mini torch for emergency light lighting
️[Easy to activate] - Pull out the pen to activate the personal alarm and insert it again to stop it. You can press the light buttons together while you are in danger
Widely used: This personal safety alarm is a safety necessity when travelling, hiking, camping and walking the dog. Designed for people of all ages, such as students, child safety, police and correctional officers, walkers, joggers, elderly, night owls, single workers
Safety comes first: 125-140dB personal alarm with key chain, people can attract attention, even from far away. The sound gets louder and louder
Note: If the alarm sound becomes quieter or after using it for 8 months, please remove the screws from the back cover and insert new batteries

13,08 €