Scubapro Galileo Luna Hoseless Wrist Computer w/ Transmitter and IRDA USB Reciever Hoseless gas integration, Full-Tilt Digital Compass with Bearing Memory Extra large Dot-Matrix Display, Updatable Processor that can be Reprogrammed via Infrared by the User EN Certification to 1082 feet (330 meters) User-replaceable battery with tissue loading memory Galileo's memory chip can hold over 100 hours of dive profile data and 100 bitmap images as a wreck map the diver can use to orient himself.