World’s smallest mains heat alarm | Battery back-up | Wireless connectivity

Seriously small for a serious job. We designed the world’s smallest heat alarm for an easy install and to stay concealed. Lumi-Heat® clicks seamlessly in our Downlight and wirelessly connects to our Lumi-Smoke® alarm, so they can protect the entire property.

All the important bits you need.

Design files.

.RFA, .LDT, and .IES files to help streamline your design.


Every product detail on one useful, downloadable datasheet.

Install sheet.

Download the installation sheet for all our technical know-how.

Test certification.

All our official certifications, ready for you to download.

Instantly know if things start heating up.

Tell me more.

We like to let our solutions speak for themselves – but we also love being able to introduce our exciting new products personally. If you want to know more or you’d like to book a demonstration – please get in touch.

Join our mailing list.

Send us your plans.

Drop files here or
Max. file size: 8 MB, Max. files: 5.