152mm diameter.

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Please complete your details below to request a copy of our white paper on “A review of the different methods of automatically and remotely testing smoke detectors and a discussion as to whether they comply with the service and maintenance requirements of BS 5839-1: 2025”. Once you have pressed Submit you will be presented with a download link for the white paper.

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Please complete your details below to request a copy of our ““Problems with, and solutions to, the Interconnection of Domestic and Commercial Fire Alarm Systems in Multiple Occupancy Dwellings and Apartment Blocks” white paper. Once you have pressed Submit you will be presented with a download link for the white paper.

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Please complete your details below to request a copy of our white paper on “The suitability of radio alarm devices for evacuation alert systems.” Once you have pressed Submit you will be presented with a download link for the white paper.

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To access this software please complete your details below. This will allow us to keep you updated with any future revisions to our software.

By submitting this form you agree to your details being added to our ebulletin database and that you are happy to receive news, views, hints, tips, technical updates, links to help videos and more from the UK’s leading independent manufacturer of quality life safety electronic systems. Your details will not be shared with any third party and will be used in accordance with our privacy policy. You will be able unsubscribe from our ebulletin service at any time.

To access this software please complete your details below. This will allow us to keep you updated with any future revisions to our software.

By submitting this form you agree to your details being added to our ebulletin database and that you are happy to receive news, views, hints, tips, technical updates, links to help videos and more from the UK’s leading independent manufacturer of quality life safety electronic systems. Your details will not be shared with any third party and will be used in accordance with our privacy policy. You will be able unsubscribe from our ebulletin service at any time.

To access this software please complete your details below. This will allow us to keep you updated with any future revisions to our software.

By submitting this form you agree to your details being added to our ebulletin database and that you are happy to receive news, views, hints, tips, technical updates, links to help videos and more from the UK’s leading independent manufacturer of quality life safety electronic systems. Your details will not be shared with any third party and will be used in accordance with our privacy policy. You will be able unsubscribe from our ebulletin service at any time.

To access this software please complete your details below. This will allow us to keep you updated with any future revisions to our software.

By submitting this form you agree to your details being added to our ebulletin database and that you are happy to receive news, views, hints, tips, technical updates, links to help videos and more from the UK’s leading independent manufacturer of quality life safety electronic systems. Your details will not be shared with any third party and will be used in accordance with our privacy policy. You will be able unsubscribe from our ebulletin service at any time.