Nexelec GUARD Series LoRaWAN Smoke Alarms


Save time and effort when complying with Fire Safety regulations with the Nexelec GUARD Series of LoRaWAN smoke alarms.

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The Nexelec GUARD and GUARD+ LoRaWAN® smoke alarms enable you to remotely maintain your smoke alarms without having to enter the building. With the ability to interconnect up to 25 sensors and accessories, you can be assured the Nexelec GUARD series has your premises covered.

Ideal for property maintenance specialists and facility managers, these LoRaWAN® smoke alarms are particularly useful in Smart Buildings, Housing Associations and Student Accommodation. For those looking for additional data, the GUARD+ also features temperature and humidity sensors.

The ability to interconnect smoke alarms became a legal requirement in Scotland in 2022 and has been a requirement in new build and privately rented homes for over a decade. Interconnected devices in the network will simultaneously trigger the activation of the alarms. If an alarm is triggered, the building occupants will be automatically alerted. The sensor can also be configured to alert you if the alarm is activated, giving you the option to carry out checks on unoccupied buildings or alert an authorised third-party.

By using LoRaWAN® technology, the Nexelec Guard and Guard+ also enables you to easily maintain digital logs of device statuses and to manage thousands of alarms wherever you may be.

Thanks to the intelligent NAVIXIS digital logbook, demonstrating compliance couldn’t be simpler. Data recorded by these LoRaWAN® smoke alarms is accessed through this smart dashboard, here, users are able to:

  • View a complete history of their devices including when it was installed and maintained.
  • Access all device status and data such as battery status and faults from one centralised platform.
  • With an API interface, this data can also be easily fed through to your chosen Management Software for a centrally managed system.
  • If maintenance is required, the logbook can be configured to send reminders when it’s time to check or replace detectors.

Suitable to be wall or ceiling mounted, the Nexelec LoRaWAN® smoke alarms have a range of mounting options available to purchase separately.

With a discreet design, the Nexelec GUARD/GUARD+ can be easily integrated into any surrounding. This LoRaWAN® smoke alarm is simple to install and has long lasting battery life of up to 5 years.

For those looking for a device with a longer battery life, check out the Nexelec ORIGIN Series.

⚠ LoRaWAN® smoke detectors are not intended for the notification of fires and should not be used for critical messaging.


  • Photoelectric type smoke detector
  • Supports the interconnection of up to 25 sensors and accessories
  • Powerful audible alarm (85 dB at 3 metre distance)
  • GUARD+ combines smoke, temperature and humidity sensors in one device
  • Compatible with the REMOTE device, enabling users to take remote control of ceiling mounted detectors.
  • Compatible with ALERT deaf and hard-of-hearing kit
  • Sensor calibration certificate issued by a COFRAC-accredited metrology laboratory
  • Simple and fast to install
  • Provides up to 5 years battery life
  • Elegantly designed that blends in with your decor
  • Operation Indicator: 2 red and orange flashing LEDs
  • Insect protecation to prevent false alarms


Certification CE, EN14604 and UKCA certified
Signal Type LoRaWAN®
Volume 85dB @ 3M
Power input 1 x CR123 battery
Operating Temperature -10°C to 50°C
Relative Humidity 0% RH to 99% RH
Size 105mm x 105mm x 35mm
Discounted Trade Pricing: Contact us for trade pricing, to place an order or to discuss your IoT projects.

All of our LoRaWAN® products are available for distribution across Europe. To find out lead times and shipping costs, please get in touch with our sales team.

Key documents & information

This LoRaWAN® smoke alarm is ideal for use in smart buildings or empty properties. Find out more about our specific use cases or speak to a member of our team today. Our technical team can also advise as to which products would work best for your IoT project; and help with provisioning devices and setting up your LoRaWAN® network server.

Shipping available across Europe
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Additional information

Weight 150 g
Dimensions 105 × 105 × 35 mm



Measurements Taken

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Power Source

C-type batteries



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