Your key to in-depth knowledge and safe diving.
Discover our unique learning system –
and start your underwater adventure with confidence.
How MasterKey Diving Works
Be it during training, for repetition or directly before the dive -
MasterKey Diving accompanies you everywhere.
Our card learning system combines important theory,
signals and safety rules in a compact format.
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Understanding instead of memorization
Essential content
compact, clear – and always at hand
+bonus material
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Always at your fingertips
Compact in size
Powerful in impact
Credit card format – fits in any pocket.
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Waterproof & sturdy
For training and
real-world practice
What's inside the MasterKey Starter Set?
Everything you need – all on 10 cards.
From the buddy check to underwater signals and mental training –
the Starter Set keeps the essentials always within reach.
Durable, clearly structured, and ready for every dive.​
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Pre-order now –
available
Secure your set now
and be one of the first to dive in with our new card system.
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Please note: Shipping starts on July 15, 2025 –
right on time for the official product launch.
You’ll receive an order confirmation
and be notified as soon as your package is on its way.
​
and rethink how dive knowledge is learned.
July/15/2025
Diving
© 2025 by MasterKey Diving.
A brand of MasterKey Training Systems
All content is copyrighted and licensed by MasterKey Training.