Garmin GA 38 GPS/GLONASS Antenna Spearfishing Wetsuits or rucksack

or rucksack

Smaller version of the Marea mask

33 oz (10 g)

The Smart Sensor by Suunto is essentially a heart rate monitor with a chest belt that is well suited for multisport

Scuba diver on flag

Garmin GA 38 GPS/GLONASS Antenna Spearfishing Wetsuits or rucksackGA 38 GPS GLONASS Antenna Built to take advantage of the GLONASS system constellation of satellites as well as standard GPS, this robust external antenna is packaged in a low profile water resistant housing and provides 3 easy mounting solutions: pole, surface or under deck (for the underside of fiberglass decks). External GPS GLONASS antennas provide increased flexibility and installation options as well as the potential for enhanced reception of GPS