The Lifeguard System consists of two parts: a Cylinder mounted CPU Module and at least one peripheral. The main peripheral is this Display Module.
The CPU Module has a powerful processor, sophisticated firmware, numerous sensors, and an omnidirectional data transmitter. It is powered by two redundant, user-replaceable batteries with a typical life in excess of one year.
The peripheral Modules have a powerful processor, sophisticated firmware, a Display, and an omnidirectional data receiver. It is powered by a single, user-replaceable battery with a typical life in excess of one year.
All dive data measured and computed by the CPU Module are burst-transmitted once per second over a proprietary link to the receiver in any peripheral within range that has the proper ID number.