The BS5839 Pocket Guide is a clean, reliable offline reference designed for fire alarm installers who need quick access to the essentials of BS5839 while out on site. No clutter, no unnecessary tools—just the information you need, exactly when you need it.

Whether you’re commissioning, fault-finding, surveying, or signing off an installation, the guide keeps the key points of the standard in your pocket. Everything loads instantly, even with no signal in plant rooms, basements, or remote sites. It’s built for real-world working conditions.

Built for Installers

The app focuses on the sections and summaries professionals reach for most often. Each area is broken down into clear, approachable notes. It’s not a replacement for the full standard, but a practical companion that helps you work more efficiently day to day.

Fast, Clear and Always Available

There’s no waiting for pages to load, no adverts, and no online requirement once you’re signed in. The layout is simple, the wording is direct, and the information is organised to help you find answers quickly during installs, maintenance visits, or audits.

Offline Access

Once logged in, all content is available without any internet connection. Ideal for sites where mobile data is unreliable or restricted.

Regular Updates

As the standard changes or new guidance becomes useful, the content will be updated. You’ll always have an up-to-date companion in your pocket.

Designed for Professionals

This guide is intended for:
• Fire alarm installers
• Commissioning engineers
• Service and maintenance teams
• Fire safety professionals
• Anyone who needs a quick BS5839 reference while working on systems

Simple Account System

To keep access secure, the app uses a basic login with:
• Name
• Company
• Email
• Phone number
• Organisation code
This helps verify industry users and prevent misuse.

No Tracking, No Extra Permissions

The app does not collect location data, contacts, files, or anything unrelated to your account. There are no ads, no push notifications, and no hidden analytics beyond basic crash and performance monitoring.

Why This App Exists

BS5839 can be dense, and real-world work often means juggling drawings, tools, certificates, and the standard itself. This guide gives you the important points in a format that’s quick to scan while you’re actually doing the job.

Key Features
• Fully offline once signed in
• Quick access to key BS5839 guidance
• Clear, simplified summaries
• No ads or unnecessary features
• Built specifically for fire alarm installers
• Secure login for industry users

The BS5839 Pocket Guide is designed to make your working day smoother, faster, and more reliable—whether you’re up a ladder, in a comms room, or on the road between sites.