Dive timer

Dive timer is a device used by scuba divers to measure the duration of their dives. It is an essential piece of diving equipment that helps divers manage their time underwater and ensure their safety.

History

The first dive timers were simple mechanical devices, but today's dive timers are sophisticated digital instruments that can provide a wealth of information to the diver. The development of the dive timer has paralleled the evolution of diving technology and has been influenced by advances in areas such as electronics and material science.

Function

The primary function of a dive timer is to measure the duration of a dive. This is critical for managing decompression sickness, as the longer a diver is underwater, the more nitrogen their body absorbs. If a diver ascends too quickly after a long dive, they can suffer from decompression sickness, also known as "the bends."

In addition to tracking dive time, modern dive timers often include features such as depth gauges, temperature sensors, and ascent rate monitors. Some models can even calculate decompression stops and provide warnings if a diver is ascending too quickly.

Types

There are two main types of dive timers: standalone devices and dive computers. Standalone dive timers are simple devices that only measure dive time. They are typically used in conjunction with a separate depth gauge and dive table.

Dive computers, on the other hand, are multifunction devices that can measure dive time, depth, temperature, and other variables. They can also calculate decompression stops and provide real-time feedback to the diver. Some models can even be paired with a transmitter to monitor the diver's air supply.

Use

To use a dive timer, the diver typically starts the timer at the beginning of the dive and stops it when they surface. The diver then uses the dive time, along with their maximum depth, to determine their decompression requirements using a dive table or dive computer.

See also

• Diving watch
• Dive computer
• Decompression (diving)