Heat detector

  • Design


    Facilitates acceptance of the detector by residents

  • Digital detector logbook

    Digital detector logbook

    QR Code + Application for monitoring installation and maintenance of a fleet of detectors

  • Electronic maintenance certificate

    Electronic maintenance certificate

    After each maintenance operation, a unique certificate is stored in the detector’s secure NFC chip

  • Heat

  • 10 years*

Reliable at all times, for maximum safety

HEAT+ enables you to spot the start of a fire quickly, thanks to its high-sensitivity thermistor, which can detect major temperature changes in a matter of seconds.

The heat detector should be installed in all rooms where smoke detectors cannot be installed, such as the kitchen, laundry room or garage.

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Smoke detector. 10-year battery / Détecteur de fumée

By entering the detector, insects can disrupt the device and cause false alarms. The device is therefore equipped with reinforced anti-insect protection. The product’s external design forms a barrier that effectively limits the entry of large insects.

The product features a powerful audible alarm, with a range of 85dB at 3m. By way of comparison, this represents the same sound volume as a TGV passing through your corridor.

Suitable for all installation configurations

Smoke detector. 10-year battery / Détecteur de fumée

Universal** mounting base

Simplifies replacement of other brands of detectors without drilling new mounting holes

Compact mounting base

Only 3 cm in diameter to avoid damaging the installation surface

Approved** 3M adhesive fastener

CE-certified mounting device for installing the detector without screws or plugs. No need to drill through walls where asbestos, pipes or cables are present

Rip-off protection

Lockable mounting base to reduce the risk of detector removal in rental accommodation

The first detector designed for professionals

Do you have several thousand homes fitted with detectors?

Operational management of the installed base can quickly become complex, due to frequent changes of residents, maintenance problems and necessary replacements.

Protecting occupants requires a proactive approach.

Our solutions are specifically designed to meet these challenges!

Electronic maintenance certificate

After each maintenance operation, a unique certificate is recorded in the product's secure NFC chip. Detector maintenance (cleaning + function test) is thus certified as compliant by the operator.

Digital detector logbook

QR Code + application to monitor the installation and complete maintenance of a fleet of detectors. The digital logbook is a tracking tool specifically designed to meet the needs of lessors and property maintenance specialists.
Smoke detector. 10-year battery / Détecteur de fumée

NAVIXIS: the digital logbook for monitoring detectors

Smoke detector. 10-year battery / Détecteur de fumée

Complete history

Traceability of installation and maintenance of each device: useful information for insurance purposes or regulatory inspections

Ease of management

Information is stored and accessible online for simplified, centralized monitoring of a fleet of several thousand products.

API interface and connectors

The digital notebook integrates easily with your favorite management software thanks to our APIs and dedicated connectors

Automated tracking

The logbook can be configured to send reminders when it's time to check or replace products

Control your detector with your fingertips!

Need to test or stop your detector’s alarm?

Easy and simple to make, thanks to the large touch-sensitive knob on the front of the product

Signal light

Discreet LED indicator in standby mode, powerful in alarm mode

Silence function

Stops the alarm and/or puts the detector on standby for 10 minutes without removing it from its base.

8-hour beep delay

Temporarily silences fault beeps until detector is replaced
Heat detector / Détecteur de chaleur


  • Heat


    Technology : Thermistor
    high sensitivity (class A) with
    tripping threshold at 58°C


  • Conditions of use

    Indoor environment
    Temperature: -10°C to +50°C
    Humidity: 0% RH to 99% RH (non-condensing)

  • Mounting type

    Wall or ceiling

  • Set contents

    1 detector
    1 BASE+ mounting base
    2 nylon screws and plugs
    1 user manual

  • Warranty

    5 years***

  • Dimensions

    105 x 105 x 35 mm


Reference Battery
X820LT 10 years

10-year battery life

  • Very low power consumption for the detector and on-board electronics
  • Includes 1 sealed and welded lithium battery
Smoke detector. 10-year battery / Détecteur de fumée

Discover the 2024 Fire Safety catalog!

For over fifteen years, Nexelec has been dedicated to building surveillance, with occupant safety at the heart of its commitment.

Discover our range of reliable and innovative stand-alone detectors.

Read the catalog

Who says a heat detector can't be stylish?

Most residents consider heat detectors to have an imposing and unattractive design.

Our product combines technology with a modern, minimalist design that blends harmoniously with any interior décor.

Heat detector / Détecteur de chaleur

Design & Performance

Frequently Asked Questions

Our experts answer your questions

The heat detector (DAAT) identifies rapid temperature changes that could indicate the start of a fire. This product monitors rooms such as kitchens, garages and laundry rooms, where smoke detectors (DAAF) cannot be installed.



WARNING: for your own safety, do not disable your detector if it is operating correctly!

To switch off a sealed-battery detector, simply take a paper clip, insert it into the square hole at the back of the product, and pull slightly to raise the switch. If the detector has a changeable battery, simply remove the battery to switch the product off.

Please wait at least 20 seconds before switching the detector back on.

NFC is a magnetic field technology used to exchange data between two nearby devices.

NFC is used to configure Nexelec sensors.

To configure your sensor, simply :

  • Download the free Nexelec TOUCH application onto your smartphone
  • Place the smartphone against the central part of the sensor
  • Follow the instructions on the TOUCH application

*The battery is designed for a non-guaranteed life of 10 years: battery life may vary. Please refer to the “Precautions and Limitations” section of the user manual.

**Optional accessories available on request

***Refer to the “Warranty” section of the user manual