Description
Tankless diving, built into your boat
Flip a switch. Get in the water.
The BIAS Tankless Dive Module places Brownie’s proven surface-supplied air system below deck—ready whenever the water calls, without scuba tanks or a floating compressor taking over your boat.
Up to 3 divers
24V variable-speed power
Optional battery module
Optional 140 ft E-Reel
A cleaner way to equip a dive boat
Keep the deck open and the water within reach
BIAS turns tankless diving into part of the boat. The compressor stays mounted in a protected, properly ventilated location while quick-release air connections make it easy to rig the system when it is time to dive.
Hidden below deck
Move the compressor off the swim platform and out of the way of everyday boating.
Push-button operation
Electric power means no gasoline, pull cord or exhaust at the surface.
Built around your boat
Choose your power source and add the E-Reel when integrated hose storage matters.
Ready for a dive buddy
Every configuration begins as a complete two-diver basic package.
One module. Three simple selections.
Choose divers, power and hose management
Every combination starts with the same BIAS Tankless Dive Module. Choose equipment for two or three divers, decide whether to add the dedicated battery module, and select manual hose storage or the powered E-Reel.
Dive Module
$3,900
- BIAS Tankless Dive Module
- Use a compatible 24V power source
- Deploy and stow the air hose manually
- Complete 2-diver basic kit
3 Divers + Battery
$7,300
- BIAS Tankless Dive Module
- Complete 3-diver basic kit
- Dedicated RELiON battery module
- Manual hose storage
3 Divers + Battery + E-Reel
$10,300
- BIAS Tankless Dive Module
- Complete 3-diver basic kit
- Dedicated battery module
- 140 ft powered E-Reel package
The three examples above show the lowest, a representative middle, and the highest configuration. Use the Diver Package, Battery Module and E-Reel dropdowns in the product area above to build any of the eight combinations.
Configure the boat-side system
Match the system to your vessel
Power
Use your power or add ours
The dive module operates on 24V DC. Choose the dedicated battery module for a matched onboard energy source and built-in charging from the boat’s 12V system.
Hose management
Keep it simple or reel it in
The optional E-Reel gives the hose a permanent home and powered retrieval, helping keep a finished installation clean and fast to deploy.
Optional powered hose management
Deploy the hose. Reel it back in.
The E-Reel turns the diver hose into part of the boat’s finished installation. A rocker switch powers retrieval while the stainless-steel hawse provides a clean route through the hull or cabinetry.
What comes standard
A complete two-diver starting point
Every BIAS configuration begins with the same core system and basic equipment for two divers. Upgrade only the parts that improve the way your crew dives.
- 24V variable-speed motor and single-head direct-drive compressor
- Pressure-switch control
- King StarBoard mounting base with pre-drilled mounting holes
- Complete basic breathing-air equipment for two divers
- Two basic tow belts
- One basic gear bag
Equipment for a third diver, Bright Weights belts and slug weights, deluxe gear bags, independent backup-air equipment and dive computers are available separately.
Bring a buddy—or one more
Two or three divers to 33 feet.
Select the complete two-diver or three-diver basic package. Both configurations have a maximum rated depth of 33 feet.
From below deck to below the surface
A system designed around the boat
The modular layout lets the compressor, power, air connection and hose storage live in the locations that make sense for your vessel.
A practical setup while cummerbelts are unavailable
Keep air connection and ballast separate
Each diver package includes a basic tow belt for connecting the diver to the Brownie’s air hose. Pair it with a separate Bright Weights belt for comfortable, adjustable ballast without loading weight onto the tow belt.
- Basic tow belt remains dedicated to the air-hose connection
- 500 g Bright Weights slugs slide in and out of the weight belt
- Adjust ballast without unthreading the belt
- Marine-grade stainless buckle supports quick ditching
- Choose the belt color and only the number of slugs each diver needs
Weight belts and individual weights must be selected and used according to the diver’s training, exposure protection, conditions and buoyancy requirements.
Bright Weights Belt
Flexible double-webbing belt with a stainless buckle, utility D-ring and patented weight-locking design. Weights sold separately.
500 g Slug Weights
Add or remove individual slugs to fine-tune each diver’s ballast. Choose the quantity and finish on the product page.
Build the crew you want to dive with
Add individual equipment
Your BIAS arrives with the selected two- or three-diver basic package. Add backup air, dive information or upgraded storage without forcing those costs into every system.
Add-a-Diver Kit
Add the regulator, 20 ft diver hose, Y-divider and basic tow belt required for another diver position.
Deluxe Gear Bag
Add tougher materials, reinforced grab handles and improved organization for your diver equipment.
Spare Air 3 cu. ft. Package
Add a compact, refillable breathing source that remains independent of the surface air system.
SEAC Screen Computer
Give each diver clear wrist-mounted depth, time and dive information for better situational awareness.
A backup that travels with the diver
Why consider Spare Air?
The BIAS supplies breathing air from the boat through the diver hose. Spare Air gives the diver a separate, compact breathing source that does not depend on the compressor, boat power or surface hose.
- Independent from the BIAS and its hose
- Compact 3 cu. ft. refillable cylinder
- Designed for emergency use—not as a primary dive-air source
- Available per diver, so each person can be equipped consistently
Spare Air does not replace training, conservative dive planning or the need to remain prepared to make an emergency ascent. Divers must use an appropriate, secure carry method and follow the current manufacturer instructions.
Plan the installation
New build, refit or a “new to you” boat
A good BIAS installation starts with a dry, ventilated equipment location and a clear plan for power, clean air intake and hose access.
Secure mounting
The compressor module is supplied on a King StarBoard base with pre-drilled mounting holes. It must be securely fastened before operation.
Clean breathing-air source
The installation area must be dry and well ventilated. If breathable air is not available at the compressor location, plan a fresh-air intake to a clean source.
Power planning
Confirm conductor size, run length, circuit protection and charging arrangements with a qualified marine installer before installation.
Project support
Contact Brownie’s before finalizing the installation when you need foundation drawings or guidance coordinating the system with a boat builder or yard.
Preparation matters
Train, plan and be ready
Breathing underwater involves inherent risk. Proper instruction, installation, maintenance, dive planning and emergency preparation are essential.
Get properly trained
Training access codes are included with the product. Divers can complete Brownie’s online training and receive completion certificates before using the system. Divers should follow the current Brownie’s instructions, stay within the limits of their training, experience and equipment, and remain prepared to make an emergency ascent.
Consider independent backup air
For dives beyond a depth at which a diver is personally comfortable making a controlled free-swimming ascent, many experienced divers carry an independent emergency breathing source. Backup equipment does not replace training or proper dive planning.
Diving made part of the boat
Build the BIAS that fits your vessel
Choose two or three divers, select your power source and decide whether powered E-Reel hose storage belongs in your installation.
