Decometer: A Digital Computer for the Diver's Wrist

The Digital Decompression Computer (DECOMETER) is a wrist-worn accessory that enables the diver to maximize his time in the water safely and reliably. The computer is programmed with the U. S. Navy Diving Tables and continually calculates his inert gas pressure at each depth to determine his decompression status. The calculations occur every two seconds and the diver's status is displayed as actual depth and safe ascent depth; for safety, the battery status is also indicated. The significant features which make the device unique are its small size, digital microprocessor, programmability, low power consumption, and, of course, its ability to accompany the diver. The DECOMETER's main purpose is to compute and display the diver's decompression status as a guide. It is not, in itself, a life support item.