Woman holding a smoke detector in her hand

How to choose your smoke detector?

There are different types of smoke detectors on the market, and it can be difficult to know which one to choose. Here are some tips to help you make the right choice for your needs.

Photoelectric smoke detectors

Photoelectric smoke detectors work by detecting smoke particles in the air. When the concentration of particles reaches a certain level, an alarm is triggered. This type of device generally has a long service life and is unlikely to trigger false alarms.

These devices are usually installed in kitchens, as this is where fires are most likely to occur.

Ionic smoke detectors

Ionic smoke detectors consist of a ceramic filter and an ionising chamber. When smoke is detected, the ions released in the ion chamber trigger the alarm. These detectors are generally more sensitive than particle detectors and can detect fires in their start-up phase. However, they can be triggered by airborne dust and smoke molecules and should therefore be cleaned regularly.

These detectors are ideal for homes with a fireplace or a wood stoveThey are less vulnerable to soot and dust debris. They are generally more expensive than other types of smoke detectors, but they are more reliable and can save your life.

Mr.DIY | How to choose a smoke detector?

Ionic smoke detectors have several advantages. They are :

  • susceptible to fire in their start-up phase;
  • not very sensitive to airborne dust and smoke particles;
  • not very responsive to temperature and humidity variations.

However, it also has some disadvantages. These are:

  • prone to false positives;
  • require regular maintenance;
  • can be damaged by smoke.

Would you like to equip your home with a smoke detector?

>> Discover our complete guide to the best smoke detectors

Thermistor smoke detectors

Heat (thermistor) smoke detectors are often used in flats and houses. They are cheaper than ionisation smoke detectors and can be easily installed. These devices are equipped with a sensor that detects temperature changes. When the heat in the room increases, the sensor sends a signal to the smoke detector. If the temperature continues to rise, the smoke detector triggers an alarm.

Thermistor smoke detectors are effective in detecting fires that spread rapidly and produce large volumes of smoke. However, they can be damaged by particles and may malfunction. In addition, theyThey are not as sensitive to slow-moving fires and therefore may not raise the alarm in time.