BS 5839-1 Support App

The BS 5839-1 Support App gives fire alarm engineers a quick, reliable way to access key guidance, calculations, and reference material while on the job. It’s designed to save time, reduce mistakes, and keep essential information in one place, even when you’re offline.

Whether you’re checking system categories, confirming sound levels, or running a battery calculation, everything is presented clearly and simply.

Key Features • Fast reference to BS5839 guidance Access essential points from the standard in a clean, easy-to-read format. • Battery Capacity Calculator Quickly work out standby and alarm load using a streamlined, engineer-friendly tool. • Offline Access Your saved PDF guides and reference documents remain available without a network connection. • Guidance on responsibilities and system design Handy summaries covering roles, documentation, categories, and maintenance requirements. • Built for real-world use Simple layout, large text options, dark mode support, and minimal clutter.

The app is designed to support engineers, inspectors, and fire safety professionals who need trustworthy information at their fingertips. No complicated menus. No unnecessary features. Just fast access to what matters.