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A searchable database of scuba diving signals, hand signals, light signals, touch contact signals, and fish identification signals. Organized by category, with clear illustrations. Always available, even without a signal.
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A searchable reference for every type of underwater communication.
Dive Signals is a comprehensive reference for underwater communication. It covers four signal categories: core hand signals used on every recreational dive (OK, up, down, low on air, safety stop), technical hand signals for advanced diving (switch gas, deco stop, valve drill), light signals for night and cave diving (OK, attention, emergency), and touch contact signals for zero-visibility conditions.
The database also includes a fish identification signal section, standardized hand shapes that let dive buddies identify marine life underwater without surfacing. Each signal includes a clear illustration and description of when and how to use it.
A fuzzy search function lets you find signals quickly by name or keyword. Signals are grouped by category with clear headers, making it easy to browse or study before a dive. The entire database works offline, load it before the dive trip and access it anywhere, even on a liveaboard with no cell service.
Dive signals follow conventions established by major training agencies (PADI, SSI, GUE, TDI). Core signals like "OK," "up," "down," and "low on air" are universal across agencies. Technical signals (gas switch, deco stop) follow GUE/TDI conventions common in technical diving. Light signals use standardized patterns: circle for OK, rapid side-to-side for attention, and rapid up-and-down for emergency. Dive Kit's database covers all major conventions so you can communicate clearly with any buddy.
Search, tap, learn. Works on every liveaboard.
Search and browse
Signals are grouped by category, core recreational, technical diving, light signals, touch contact, fish identification, with a fuzzy search bar so you can find "pressure check" or "deco" in under a second. Browse on the boat between dives; the database is fully offline so a liveaboard with no cell service doesn't matter.
Tap for detail
Tap any signal and a detail sheet slides up with a clear line-art illustration and a description of when and how to use it. "Hold up your pinky finger" for Deco isn't always obvious if you're new to tec, the description makes it unambiguous.
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Download Dive Kit free on iOS and Android. Dive Signals is included, no account, no ads, no internet required.