The Complete Handbook of Dive Computers

I've been running a dive shop for eight years and thought I knew the landscape, but this handbook filled gaps I didn't know I had. Chapter 2 alone—the breakdown of specs that actually matter vs. marketing noise—saved me from making a bad bulk-buy decision. One criticism: the supplier section could be longer, but the business model stuff in Chapter 6 was exactly what I needed. Solid reference.

As a technical diving instructor, I appreciate the rigor here. The explanation of how decompression algorithms actually work in Chapter 1 is the clearest I've read outside a peer-reviewed paper, and the maintenance protocols in Chapter 5 are specific enough that I've already updated our shop's service checklist. My only quibble is that the future trends section feels a bit surface-level for where we're headed with AI-assisted profiles, but overall this is the book I've been recommending to everyone.

This book is thorough and well-researched, which I respect. However, I found it overly technical in places—there's a stretch in Chapter 1 about pressure transducers that lost me, and I don't think every buyer needs to understand the physics at that depth. The glossary helps, but this doesn't quite bridge the gap between manufacturer manuals and full engineering specs. Good for professionals; less ideal if you're just a serious hobbyist trying to pick your first computer.

Finally—a handbook that treats dive computers like the precision instruments they are instead of disposable gadgets. Chapter 1 alone justifies the purchase; it explains what these devices actually measure and why it matters to your safety in a way that clicked immediately. The selection framework in Chapter 3 is practical and saved me weeks of research. This is what 'serious hobbyist' literature should look like.

The technical foundation is excellent, and the business chapter (6) has real utility if you're thinking about opening a rental fleet or service center. Chapter 5 on maintenance is a keeper. Only minor issue: some of the brand positioning in Chapter 6 already feels slightly dated since I bought the book, which makes me wonder how long this will stay current. Still, the fundamentals won't change, so it's worth owning.

I appreciate that this isn't a marketing piece, but it swings a bit far the other direction—there are sections where the writing feels like it's for engineers, not divers. The troubleshooting chapter is solid, but the chapters on specs and selection assume you already know more than you probably do going in. The glossary at the end helps patch that, though it shouldn't have to. Good reference material, but not as accessible as it could be.

This is exactly the book the diving community needed. No hype, no recycled sales copy, just concrete information grounded in how these devices actually work and why it matters. I've already bought three copies—one for my own gear library, one for our shop's reference desk, and one for a colleague getting into technical diving. Chapter 1 is worth the price alone if you've ever wondered what's actually happening inside your computer when you're fifty meters down.