Scuba diving is an exhilarating adventure, but safety should always be the top priority. Whether you're a beginner or an experienced diver, having the right safety gear can prevent emergencies and ensure a smooth dive. Many safety incidents in diving can be avoided with proper preparation and the right equipment. Let’s dive into the essential safety gear every diver should carry and why it matters.
1. Surface Marker Buoy (SMB) or Delayed SMB (DSMB)
Estimated Cost: $40 - $150
An SMB is a crucial piece of equipment for notifying boats of your presence when surfacing. In areas with heavy boat traffic, an SMB can prevent serious accidents. A DSMB, which can be deployed underwater, is even more valuable in drift dives or when surfacing far from the boat. Practicing DSMB deployment in a pool before using it in open water can build confidence and ensure proper handling.
2. Dive Computer
Estimated Cost: $300 - $1,800
A dive computer monitors depth, bottom time, and ascent rate, helping divers stay within safe limits. Some advanced models also track air consumption and provide decompression stop alerts. PADI courses like the Advanced Open Water Diver introduce divers to proper dive computer use, allowing them to practice in a controlled environment before heading into open water.
3. Backup Dive Light
Estimated Cost: $80 - $450
Even if you’re not planning a night dive, carrying a compact dive light is essential. Colors fade underwater due to light absorption, and a dive light helps restore the vibrant hues of the marine world. It’s also a crucial tool for signaling your buddy, especially in low-visibility conditions.
4. Whistle and Mirror
Estimated Cost: $10 - $30
A whistle and signaling mirror are simple yet effective tools for attracting attention if you surface far from your boat or shore. A whistle can be heard up to a mile away in calm conditions, making it an inexpensive but potentially life-saving piece of gear.
5. Cutting Tool (Dive Knife or Shears)
Estimated Cost: $20 - $100
Entanglement in fishing lines, kelp, or other underwater hazards is a real risk. A dive knife, line cutter, or trauma shears can help divers free themselves quickly. Dive knives should be made of corrosion-resistant materials like titanium or stainless steel to withstand the underwater environment.
6. Underwater Slate or Wet Notes
Estimated Cost: $20 - $50
Communication underwater can be challenging, especially in stressful situations. While hand signals work in most cases, an underwater slate or wet notes allow divers to write messages, making it easier to communicate more complex information.
7. Personal Locator Beacon (PLB), Garmin InReach & Garmin Descent MK3i
Estimated Cost: $250 - $700
For divers venturing into remote locations, a Personal Locator Beacon (PLB) or Garmin InReach is invaluable. These devices send a distress signal with the diver’s exact GPS location to rescuers, ensuring a faster response in an emergency.
The Garmin Descent MK3i dive computer, when paired with Garmin InReach, offers real-time GPS tracking, two-way messaging, and emergency SOS features, making it a game-changer for divers who explore unpredictable waters.
8. Tank Banger or Noise-Making Device
Estimated Cost: $10 - $25
A tank banger, shaker, or other noise-making device helps divers get their buddy’s attention underwater. In strong currents or poor visibility, these tools can be more effective than hand signals.
9. First Aid Kit & Oxygen Supply
Estimated Cost: Varies ($50 - $500 for full oxygen kits)
A well-stocked first aid kit with bandages, antiseptics, and an emergency oxygen supply is essential. Oxygen administration is the first treatment for decompression sickness, and having access to emergency oxygen can make a significant difference before medical help arrives. Many dive shops and resorts require divers to have DAN (Divers Alert Network) insurance to cover emergency treatments.
Final Thoughts
Having the right safety gear is essential, but it’s only part of the equation. We encourage all divers to master their skills and know how to use their gear inside out—both above and under the water. Equipment is only as effective as your ability to handle it confidently in any situation.
If you ever have questions about your gear, need help choosing the right equipment, or want to practice in a controlled environment, come by the shop. We’ll be happy to guide you over a cup of coffee or in our pool.
Blog by Oz
MSDT, Scuba 2000
