In today’s world, ensuring the safety of our homes has become more critical than ever. With the rise of unexpected dangers, from fires to burglaries, having a robust alarm system in place can be the difference between a secure home and a vulnerable one.But with a variety of alarms available on the market, choosing the right types for your home can feel overwhelming. 

In This Blog we will guide you through the essential alarms every homeowner should consider. From smoke detectors that alert you to the first sign of a fire, to intruder alarms designed to deter unauthorised entry, we’ll explore the key features and benefits of each type.

Whether you’re setting up a new home or upgrading your current security measures, understanding the types of alarms you should have at home is the first step towards peace of mind and enhanced protection for your living space.

1. Smoke Alarm

types of smoke alarm

Smoke alarms are crucial for spotting fires early, greatly lowering the chance of people getting hurt or property being damaged. Let’s look at the two main kinds of smoke alarms: ionisation alarms and optical alarms.

Ionisation Alarms

Ionisation smoke alarms are adept at detecting small particles of smoke produced by fast-flaming fires, such as those caused by paper or wood. These alarms house a tiny amount of radioactive material between two electrically charged plates, which ionises the air and creates a current between the plates. When smoke enters the chamber, it disrupts this flow, triggering the alarm. Due to their sensitivity to smaller smoke particles, ionisation alarms are best placed in areas away from kitchens to avoid false alarms caused by cooking fumes.

Optical Alarms

Optical smoke alarms, also known as photoelectric alarms, are designed to detect larger smoke particles from slower-burning, smouldering fires—commonly resulting from electrical faults or upholstery ignition. These alarms use a light source and a photoelectric sensor; when smoke obstructs the light beam, the alarm is activated. Optical alarms are less likely to trigger false alarms from kitchen smoke, making them suitable for installation near these areas for enhanced protection against smouldering fires.

2. Intruder Alarm / Burglar Alarm

types of intruder alarm

Intruder alarms, or burglar alarms, are critical components of home security, designed to deter break-ins and alert homeowners and authorities to unauthorised entry.

Should I get an intruder alarm?

Deciding whether to invest in an intruder alarm involves considering your living situation, neighbourhood security levels, and personal peace of mind. Intruder alarms not only act as a deterrent for potential burglars but also provide an immediate alert system, enabling quick response to prevent theft or damage. With options ranging from basic sensor alarms to advanced systems integrated with CCTV and remote monitoring, choosing the right system depends on your specific security needs and budget.

Are intruder alarms effective?

The effectiveness of intruder alarms in preventing burglaries is a subject of much debate. However, studies and surveys consistently show that homes with visible alarm systems are less likely to be targeted by burglars. The presence of an alarm system, especially when combined with other security measures like good lighting and secure locks, significantly increases the overall security of your home. Additionally, the psychological deterrent effect on potential intruders cannot be understated, making intruder alarms an essential consideration for home security.

Types Of Intruder/Burglar Alarm

  1. Wired Intruder Alarms: These systems are physically connected through wires that run inside your home’s walls, connecting sensors to the main control panel. Wired alarms are known for their reliability since they don’t rely on batteries (except for backup power) and are less prone to interference.They are best suited for homes under construction or during major renovations because the installation process involves routing cables through walls. If you’re looking for a permanent, low-maintenance solution and don’t mind the initial installation complexity, a wired system might be the best choice for your home security.
  2. Wireless Intruder Alarms: These systems use radio frequency to connect sensors and the control panel, eliminating the need for physical wiring. The main advantage of wireless alarms is their flexibility and ease of installation, making them ideal for existing homes or for people who prefer a less invasive setup process. They’re also scalable, allowing you to easily add more sensors or integrate with smart home systems. However, they require regular battery changes and can sometimes be susceptible to interference. If you value convenience and portability, a wireless alarm system would be a great fit for your home.
  3. Pet-friendly Alarms: These systems are designed to differentiate between your pets and potential intruders, reducing the likelihood of false alarms triggered by your pets’ movements. They typically use advanced sensors that can adjust sensitivity or use a combination of technologies to ignore the presence of small animals while still detecting human intruders.
  4. Hybrid Alarms: Hybrid systems combine the features of wired and wireless systems. They are versatile, allowing for a wired infrastructure where it is convenient (like during construction or renovation) and wireless components where wiring is not feasible. This type can be particularly useful for those who are looking to expand their existing system without the need for extensive rewiring.
  5. Glass Break Detectors: These are specialised sensors that detect the frequency or vibration of breaking glass. While not a standalone intruder alarm system, they are an integral part of a comprehensive security setup, especially useful in homes with large windows or glass doors that are potential entry points for burglars.
  6. Vibration Sensors: Similar to glass break detectors, vibration sensors can detect the vibrations caused by someone attempting to force open windows or doors. These sensors can be adjusted for sensitivity to minimise false alarms while still providing an early warning of potential intrusion attempts.
  7. Panic Alarms: Although not strictly for intrusion detection, panic alarms are a crucial feature in many home security systems. They allow residents to manually trigger an alarm in case of an emergency, signalling for help. These can be standalone devices or integrated into larger security systems.
  8. Door and Window Contact Alarms: These are basic components of many intruder alarm systems, designed to detect when a door or window is opened. They are simple yet effective at triggering an alarm if an entry point is breached while the system is armed.

Each of these types serves a specific purpose and can be used in combination to create a more robust and comprehensive home security system. The choice of which types to include in your home’s security setup will depend on various factors, including the layout of your home, your lifestyle, and specific security concerns.


3. Carbon Monoxide Alarm

Carbon Monoxide Alarm

Carbon monoxide (CO) is a silent, invisible threat, often dubbed the “silent killer” because it is a colourless, odourless, and tasteless gas that can lead to fatal poisoning if undetected. Carbon monoxide (CO) alarms are critical in every home, especially those using gas, oil, coal, or wood as these fuels can produce carbon monoxide when not burned completely.

Understanding Carbon Monoxide Alarms

Carbon monoxide alarms monitor CO levels over time and alert residents with a loud alarm when dangerous levels of CO are detected. They are designed to sense CO you can’t see, smell, or taste, acting as an essential early warning to prevent CO poisoning.

Placement and Maintenance

For maximum protection, install CO alarms on every level of your home, including the basement, and near every sleeping area. Keep them away from direct sunlight, at least 15 feet away from fuel-burning appliances to avoid false alarms, and away from humidity-heavy areas like bathrooms. Test CO alarms monthly and replace them according to the manufacturer’s instructions, typically every 5-7 years.

4. Personal Alarms

personal alarm

Personal alarms are small, portable devices designed to emit a loud sound when activated, drawing attention in situations where someone might be in danger or need assistance. They are especially popular among seniors, individuals who live alone, and people who often travel or work late hours.

Are Personal Alarms a Good Idea?

Absolutely. Personal alarms can be a vital tool in enhancing personal safety in a variety of situations. Here’s why:

  • Deterrence: The loud noise can deter attackers by drawing attention to the situation, potentially scaring off the assailant.
  • Peace of Mind: Knowing you have a means to alert others in an emergency can provide significant peace of mind, especially for vulnerable individuals or those with medical conditions.
  • Ease of Use: Personal alarms are designed to be simple to use. Pulling a pin, pressing a button, or even a simple tug can activate most alarms, making them accessible for all ages.
  • Portability: These devices are small and lightweight, making them easy to carry on a keychain, in a purse, or even as a wearable device.

5. Heat Alarm

heat alarm

Heat alarms are critical in areas of your home where smoke alarms may not perform well, such as kitchens, garages, or attics. Unlike smoke alarms, heat alarms detect the presence of an unusually high temperature or a rapid rise in temperature, signalling a potential fire. These devices are designed to minimise false alarms caused by cooking fumes or dusty environments, making them an essential part of home safety in specific areas.

Functionality and Placement

Heat alarms operate by using a thermocouple or thermistor to monitor temperature changes, activating the alarm when temperatures reach a dangerous level. For optimal protection, install heat alarms on the ceiling, as heat rises and will be detected more quickly. Regular testing and maintenance are crucial to ensure they remain in good working order.

Importance of Alarm System in Home

Having a good alarm system at home is more than just having some gadgets around; it’s about putting together a system that keeps you safe from many dangers like fires, carbon monoxide, break-ins, and more. Here’s why having an alarm system is so important:

  • Quick Alerts: Alarms give you a heads-up fast, so you and your family can get to safety or deal with the problem quickly, which could save lives.
  • Keeps Burglars Away: If burglars see you have an alarm system, they’re more likely to skip your house. It’s like having an extra layer of protection.
  • Peace of Mind: Just knowing your home can warn you about dangers makes you feel safer and more at ease, especially when you’re sleeping or not at home.
  • Saves on Insurance: A lot of insurance companies will charge you less if you have a full alarm system because it means you’re less likely to need to make a claim.

Having these systems in place means you’re doing your best to protect your home and the people in it from anything that could go wrong.

Foxmoor Security

a person from foxmoor security setting up a security system

Ready to elevate your home’s security with the right alarm system? At Foxmoor Security, we’ve got you covered with a range of options tailored to your needs. Don’t leave your safety to chance. Explore our services today and find the perfect fit for your home. Secure your peace of mind with us.


In today’s world, ensuring the safety of our homes and loved ones is more important than ever. From the vital early warnings provided by smoke, carbon monoxide, and heat alarms to the deterrence and peace of mind offered by intruder and personal alarms, each system plays a unique role in protecting against specific dangers. Understanding the functionality and importance of these alarms is the first step toward creating a safer home environment.

As we’ve explored the various types of alarms you should have at home, it’s clear that integrating these systems into your safety plan is not just a recommendation; it’s a necessity. By staying informed and proactive about home safety, you can significantly reduce the risk of emergencies and ensure that your home remains a safe haven for all who dwell within it. Remember, the cost of these systems pales in comparison to the priceless security and protection they offer. Invest in your safety today for a more secure tomorrow.


What triggers a carbon monoxide alarm?

A carbon monoxide alarm is triggered by an elevated level of carbon monoxide (CO) in the air. CO can be produced by any fuel-burning appliance that is malfunctioning or improperly installed, such as furnaces, stoves, water heaters, and fireplaces. Inadequate ventilation or blocked chimneys can also lead to CO buildup in your home, triggering the alarm.

What to do if a carbon monoxide alarm is beeping?

If your carbon monoxide alarm starts beeping, it’s important to take immediate action. First, ensure that everyone in the household is accounted for and move them to fresh air outside. Do not assume it’s a false alarm or just a low battery signal. Call emergency services or a qualified technician to check your home for carbon monoxide. Do not re-enter the home until it has been declared safe.

Is it illegal to not have a smoke alarm in your house in the UK?

Yes, in the UK, it is required by law to have working smoke alarms installed in all rented properties. As of March 2015, landlords must install smoke alarms on every floor of their properties, and carbon monoxide alarms in any room containing a solid fuel-burning appliance. While homeowners are not legally obligated, it is highly recommended for safety reasons.

What is the intruder alarm also called?

An intruder alarm is also commonly referred to as a burglar alarm. These terms are used interchangeably to describe a system designed to detect unauthorised entry into a building or area.

What does an intruder alarm do?

An intruder alarm detects unauthorised entry or break-ins into a property using a variety of sensors, such as motion detectors and door/window contacts. When these sensors are triggered, the alarm sounds, alerting occupants and potentially scaring off the intruder. Many systems also notify a monitoring service or the police.

Is it worth having a burglar alarm?

Yes, having a burglar alarm is considered worthwhile by many homeowners and security experts. It acts as a deterrent to potential burglars, can reduce home insurance premiums, and provides peace of mind. Moreover, the presence of an alarm system can increase the likelihood of a quick response in case of an intrusion.

Are personal alarms legal in the UK?

Yes, personal alarms are legal in the UK. They are considered a non-violent means of self-defence and can be carried by anyone. These devices are designed to emit a loud noise when activated, drawing attention to the user in distress.

Is a heat alarm a legal requirement?

Heat alarms are not a legal requirement in all homes, but they are highly recommended in specific areas like kitchens, garages, and lofts where smoke alarms may not function effectively due to dust, steam, or fumes. Regulations can vary by location, so it’s important to check local building codes and recommendations.

Do you need a smoke alarm if you have a heat alarm?

Yes, it is recommended to have both smoke alarms and heat alarms in your home as they serve different purposes. Smoke alarms are designed to detect the presence of smoke, indicating a fire, and are best suited for living areas, bedrooms, and hallways. Heat alarms are designed to detect rapid increases in temperature and are more suitable for kitchens, garages, and attics. Installing both types of alarms in appropriate locations throughout your home provides a more comprehensive fire detection system.