Dive Gear
Surface Signaling Devices For Scuba Divers
Surface signalling devices (SSDs) can be categorised into four types: visual, audible, electronic, and night-use. Depending on surface conditions, each type brings its own advantages, so it is best if you carry at least two different types of signaling devices. Most are quite small and can fit neatly into a BC pocket or clip comfortably to a D-ring.