Safety gear is the one category on a boat where the equipment has an expiry date and a service schedule, and where the servicing is often more important than the purchase. Liferafts need repacking on a manufacturer's cycle, commonly annually or every three years depending on the pack. Lifejackets with gas inflators need an annual check of cylinder, firing head and bladder. EPIRBs and PLBs carry batteries with fixed replacement dates and must be registered with the UK beacon registry. Flares have expiry dates and, awkwardly, disposal rules. Fire extinguishers and fixed engine-space systems need periodic inspection and pressure checks.
The specialists in this category do three things: supply the right equipment for how you actually use the boat, service it on schedule as an approved agent, and advise on what is required versus what is sensible. For private UK leisure craft, safety equipment is mostly a matter of good practice rather than statutory requirement. The moment a boat is coded for commercial use or charter under the MCA small-commercial-vessel codes, it becomes a defined list with defined servicing, inspected at survey.
Buying is the easy part. Getting a liferaft serviced in February rather than discovering in June that it went out of date in April is what actually keeps a boat usable and a claim payable.