Smoke alarms & heat alarms Protection you can rely on

In many countries, smoke alarms are required in bedrooms, children’s rooms, and escape routes such as hallways. Local regulations may vary depending on the country or region, so it is important to check the applicable building regulations or safety guidelines.

Important: Heat alarms are not the same as smoke alarms. Where smoke alarms are required, smoke alarms should be installed in the relevant rooms.

We recommend using heat alarms in these rooms – for example, PREVARO 10 or PREVARO CONNECT. Vapour, exhaust fumes and high levels of dust can trigger false alarms in smoke detectors. Heat alarms, on the other hand, respond to changes in temperature and are therefore less affected by steam or dust.

Smoke alarms detect smoke particles in the air using optical sensors. When smoke enters the smoke chamber, it scatters the light emitted by the detection LED so that it reaches the sensor. If smoke is detected, the alarm is triggered.

Heat alarms, in contrast, do not respond directly to smoke. Instead, they detect rapid increases in temperature and trigger an 85 dB alarm when a critical temperature threshold (54–65 °C) is reached. This makes heat alarms a good choice for rooms where smoke alarms could be triggered by high levels of dust or steam – for example in the kitchen, laundry room, unfinished attic or garage.

Smoke alarms should generally be replaced after 10 years, as the sensors can become less reliable over time. Always follow the manufacturer's instructions in the operating manual and check the applicable regulations or standards in your country.

You can find more information about replacing smoke alarms here.

Yes, smoke alarms without these certifications can still be used. The key requirement is that they comply with EN 14604 and carry a CE marking, which confirms that they meet the relevant European safety standards.

All our smoke alarms are manufactured in accordance with this standard. In addition, the PREFIRA 10, PREFIRA SLIM, PREFIRA MINI and PREFIRA CONNECT smoke alarms carry the Q-Label (the Q-Label is a German quality mark for smoke alarms), certified by the KRIWAN testing institute. This label indicates that the detectors meet particularly high quality and reliability requirements.

Our PREFIRA smoke alarms are typically designed to operate within a temperature range of 0 °C to 55 °C. The minimum operating temperature for our heat alarms is –10 °C.

For the exact specifications of your smoke alarm or heat alarm, please refer to the operating instructions supplied with the device.

Yes, smoke alarms do not necessarily have to be mounted on the ceiling with screws. The PREFIRA SLIM, MINI, CONNECT and SMART models, as well as PREVARO CONNECT, are supplied with a mounting plate that includes a magnetic holder and adhesive pad.

Our detectors also come with screws and wall plugs for traditional screw mounting on the ceiling.

This is a status indicator. It confirms that your smoke alarm is functioning properly.

On PREFIRA and PREVARO detectors, the status LED is located underneath the housing, making it discreet and less noticeable. The PREFIRA SLIM, MINI, CONNECT and SMART models also feature adaptive LED brightness. When the room becomes dark, the LED automatically dims so you can sleep undisturbed.

A stand-alone smoke alarm cannot be networked with other detectors. It operates independently and sounds an alarm as soon as smoke is detected.

This makes it a good solution for smaller houses or apartments, where the alarm can still be heard clearly in nearby rooms.

Practical: Only the detector that detects the smoke will sound the alarm.

Our PREFIRA SMART smoke alarm, for example, is Matter-compatible and can be integrated into smart home systems when used with a Thread Border Router. This allows it to be included in smart home automations, and push notifications can be sent to your smartphone in the event of an alarm.

Our smoke alarms with 5-year batteries use replaceable batteries that power the detector for up to 5 years. After that, the batteries can be easily replaced.

Smoke alarms with 10-year batteries are equipped with an integrated, non-replaceable battery that powers the detector for up to 10 years.

Note: Smoke alarms should generally be replaced after 10 years. This means that detectors with a 10-year battery can typically be used for their entire service life without the need to replace the battery.

You can find more information about replacing smoke alarms here.

The range of wireless smoke alarms can vary depending on the building structure and environmental conditions. As an example, the PREFIRA CONNECT has a wireless range of around 180 metres in open space.

In practice, however, we recommend a maximum distance of around 15 metres between detectors, as walls and ceilings – especially those made of concrete – can significantly reduce the wireless signal.

Wireless smoke and heat alarms transmit the alarm signal to all connected devices. This means that when one alarm is triggered, all connected alarms sound at the same time.

This ensures that everyone in larger apartments or houses is alerted in time and can leave the building safely.

Up to 15 PREFIRA CONNECT smoke alarms and PREVARO CONNECT heat alarms can be connected within a single wireless network.

To mute a smoke alarm, press the test/silence button. The alarm will then be silenced for a short period of time. If smoke continues to be detected, the alarm will automatically reactivate.

Our detectors feature a large test button that covers almost the entire surface, ensuring a discreet design and making it easier to silence the alarm when it is mounted on the ceiling. The button can also be easily reached with a stick or broom handle, for example.

An instruction manual is included with every smoke alarm. You can also download the operating instructions from our abus.com website on the respective product page.

Simply navigate to the product via the menu or use the search function.