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Helping divers make informed choices about training, skills, safety, and gear.
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Menu
Getting Started
Start Here
Discover Scuba
Discover Scuba
Choosing a Dive Shop
Choosing a Dive Instructor
Choosing a Dive Agency
The Beginner Basics
Typical Training Path
Is Scuba Diving Dangerous?
Is Scuba Certification a License?
Can Non-Swimmers Learn to Dive?
Learn
Certifications Worth It?
Dive Planning
Entry & Exit Skills
Abovewater Skills
Underwater Skills
Buddy Skills
Teamwork Skills
Dive Culture
Safety
Understanding Risk
Human Factors in Diving
Emergency Preparedness
Plans and Equipment
Medical Risks
Tools & Calculators
How-To-Guides
Calculators
Downloads & Printables
Gear Advice
Philosophy and Ownership
Right Gear for You
Which Gear & Why?
Buying Guides
Gear Reviews
All Reviews
Masks
Fins
BCDs
Dive Computers
Regulators
Navigation
Lights
Camera
Pressure Gauges
Wetsuits
Drysuits
Tanks
Gear Bags
Apparel
Travel
Trip Reports
Travel Tips
Destinations
Chicagoland
Dive Shops
Private Instructors
Local Dive Sites
Day Trip Dive Sites
Community
Books
The First Breath
The Next Descent
Why I Wrote These
Recommended Books
Status : Underwater Probes
Written by Tyler Allison • Last updated July 3, 2025