#SCUBA HAND SIGNALS FREE#

Communicating Decompression Depth and Status “Level Up” For example, if a diver had 150 bar remaining in their cylinder, they would indicate a “1”, then a “5”, and finally a “0”. The amount of pressure remaining in the cylinder is given as a number, with each numeral indicated in sequence. They then curl their fingers toward their wrist several times as if squeezing a sponge. To use one hand to request the amount of breathing gas another diver has available, the diver holds their hand horizontally with the palm facing up and the fingers extended. One-handed communication is more efficient, and can be as easy as communicating with two hands once the divers are familiar and experienced with one-handed signals.Ĭommon one-handed signals are used to communicate:

#SCUBA HAND SIGNALS FREE#

This leaves their other hand free for a camera, ascent line, decompression platform, dive light, or diver propulsion vehicle. In addition to this information, decompression diving requires divers to share critical information about ascents and descents, where to ascend, decompression status, decompression stop depth, and how long to remain at each decompression stop.ĭecompression divers often use only one hand to communicate. The dive buddies must regularly share their gas pressure, comfort level, navigation, and underwater positioning.

Dives but maybe even more so during decompression dives. SSI have created a standardized set of hand signals which are used globally by all SSI divers to ensure a clear level of understanding and consistency.Īll of the common rules about communicating underwater apply not only during recreational. Communication underwater during any dive is a critical component for diver safety and enjoyment.

Scuba hand signals