Marine Robotics Starts Here

Explore Blu-Bits – modular components for DIY underwater systems
Blu-Bits Subsea Components

Welcome to Blu-Sub Mechatronics — your Canadian hub for high-quality subsea components, tools, and ideas. Whether you're building underwater robots, exploring marine technology, or just getting started, we're here to support your journey.

Clear acrylic and black aluminum subsea enclosure tubes in several lengths
Subsea Enclosure Builder Icon

Build a Complete, Pressure-Rated Subsea Enclosure—Fast

Build a pressure-rated subsea enclosure in minutes. The builder walks you through tube, end-caps, trays and vents with guaranteed compatibility and live pricing. Pick acrylic for clarity or aluminum for rugged depth—every part fits together.

Open the Subsea Enclosure Builder →

Four end views of the Blu-Thrust Z80 with and without blue weed guards
Introducing

Blu-Thrust Z60 & Z80 Series Thrusters

Powerful Brushless Subsea Propulsion with 12V and 24V Optimized Models
Blu-Thrust Z60 & Z80 Series
Exploded Z80 thruster view showing the duct, motor, propeller, blue weed guards and snap-on cap
ENGINEERED FOR INTEGRATION

Choose Z60 or Z80 in integrated ESC or external ESC configurations.

From Compact ROVs to Heavy-Duty Systems
EXPLORE THRUSTERS
Underwater vehicle with two bright blue lights illuminating dark water

Welcome

Dive into our Blu-Bits collection for modular subsea hardware, explore Blu-Guide for practical knowledge and inspiration, and stay tuned for Blu-Flux, our upcoming line of underwater power solutions. We're engineers, makers, and builders ourselves — and we’re excited to help you bring your projects to life.

About

Shop Blu-Bits by Category

Black aluminum enclosure tube showing its open end and longitudinal mounting rails
Subsea Enclosures
M10 rotary on/off switches in black aluminum and stainless steel, each with two wire leads
Subsea Switches & Potentiometers
Angled M10 subsea depth sensor showing its protective cap and black threaded body
Subsea Sensors
Two M10 bulkhead connectors with exposed wire leads and circular connector faces
Subsea Cables & Connectors
Blu-Sub dimmable subsea LED light, angled view showing the lens, black housing and cable
Subsea Lighting
Four subsea seven-segment displays with illuminated digits visible behind their front windows
Subsea Displays
Three M10 signal indicators illuminated red, green and blue, with their attached wire leads
Subsea Signal Indicators
Blu-Thrust Z80 counterclockwise propeller version, shown at an angle with its blue weed guard installed
Subsea Thrusters
Blu-Vision Fish-Eye binocular camera showing two clear domed windows in its black oval housing
Subsea Cameras & Binoculars
Two scratch-proof wrenches gripping a cable penetrator, with its cable passing through the fitting
Subsea Tools
M10 coupling tube and detached threaded end fitting, showing the tube's internally threaded opening
Subsea Accessories
Blu-Float white buoyancy foam blanks shown upright and stacked flat
Buoyancy & Ballast
MOS low-side switch board with four red and black power cables and ring terminals
Electronics
MOLYKOTE 111 Compound packaging shown as a sealed packet and a capped tube
Lubricants & Sealants
Water pressure testing chamber with its manual hydraulic pump, connecting hose and pressure gauge
Subsea Testing Equipment
Three groups of black enclosure O-rings arranged in increasing diameter
Subsea O-Rings

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Blu-Guide Resources

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Acrylic Subsea Enclosures: Cast vs. Extruded and Essential Care
Acrylic Subsea Enclosures: Cast vs. Extruded and Essential Care
Blu-Thrust Z60 / Z80 Weed Guard Assembly Guide
Blu-Thrust Z60 / Z80 Weed Guard Assembly Guide
Step-by-Step Guide to Customizing an End Cap
Step-by-Step Guide to Customizing an End Cap
Vacuum Testing Basics: What, Why, and How
Vacuum Testing Basics: What, Why, and How
Black cable penetrator showing its threaded mount, hex nut, O-ring, and ribbed sealing cap
Waterproofing Procedure for Penetrator Devices