HullSonic HS400 Ultrasonic Antifouling System — 4 Transducers, Full 4-Channel
Every channel live. 200W of ultrasonic protection across vessels to 59ft/18m.
The HS400 is the complete HullSonic recreational system — four transducers, four independently calibrated channels, and coverage for the running surfaces that matter.
Four transducers, four independent channels
Four channels means four separately calibrated acoustic zones, not one signal split four ways. Each transducer is driven by its own channel, auto-tuning across the 19–80kHz band to the hull section it's bonded to. A transducer on a thin topside panel and one on a heavy keel section behave completely differently — the HS400 treats them as different problems, because they are.
That matters most on the areas owners actually lose to fouling: the turn of the bilge, the keel root, the area ahead of the running gear, and sea chests or strainer boxes.
45–55W per channel. 200W total.
Each channel is user-adjustable 45–55W and ships at 50W, for 200W of ultrasonic acoustic energy across the installation. You can bias power toward the channels doing the hardest work and back off where fouling pressure is lower — a level of control that matters on a boat living somewhere warm.
ECO, STANDARD and BOOST
- ECO — for solar, wind and limited shore power. Lower draw, continuous protection.
- STANDARD — the everyday setting.
- BOOST — maximum output for peak fouling season or an extended lay-up.
Programmable sleep stands the system down for 4–8 hours and resumes automatically.
Colour display and WiFi
Live per-channel drive power, calibration state and fault reporting on a full-colour display — with four channels running, being able to see at a glance which one has a problem is the difference between a five-minute check and an afternoon with a multimeter. WiFi handles setup, diagnostics and over-the-air firmware updates.
12–24VDC, auto-sensing
One unit for both bus voltages. No configuration, no variants.
Feature bullets
- Full 4-channel operation — four independently auto-calibrated transducer channels
- 45–55W per channel, user-adjustable, 50W default — 200W total
- 19–80kHz auto-calibrating sweep per channel
- Full-colour status display with live per-channel diagnostics
- WiFi + over-the-air firmware updates — app-ready for remote monitoring (coming soon)
- ECO / STANDARD / BOOST modes plus programmable sleep
- 12–24VDC auto-sensing input
- Protects vessels to 59ft / 18m
- Extends antifouling paint life 2–3x
Specifications
| Model | HullSonic HS400 |
| Control module | 4-channel, all channels active |
| Transducers supplied | 4 × HS-T50 |
| Output per channel | 45–55W user-adjustable, 50W default |
| Total output | 200W |
| Frequency | 19–80kHz, auto-calibrating per channel |
| Input voltage | 12–24VDC auto-sensing |
| Display | Full-colour |
| Connectivity | WiFi — configuration, diagnostics, OTA firmware |
| Operating modes | ECO / STANDARD / BOOST + sleep function |
| Vessel length | Up to 59ft / 18m |
| Transducer cable | 32ft / 10m per transducer, extendable to 80m total |
What's in the box
- 1 × HullSonic HS400 Control Module (4 active channels)
- 4 × HS-T50 Ultrasonic Transducers, each with 32ft (10m) silicone cable
- 4 × HullSonic transducer mounting footprints
- 1 × Tube Loctite 515 transducer gasket material
- 1 × 16ft (5m) silicone rubber battery power cable, pre-attached to the module
- 1 × Transducer installation kit (JB Weld epoxy adhesive and mixer)
- 1 × In-line fuse and spare fuse kit
- 1 × Full-colour installation and operation manual
Please Note: HullSonic ultrasonic anti-fouling systems are provided with 32ft of cable per transducer. Depending on boat size, you may require additional transducer cable to reach the transducer mounting location. Typically this can be extended using the off-cuts from other transducers installed closer to the control module, or using the same type of cable. Contact Us for assistance with extension advise. Lengths can be extended up to 60m. This unit can also be combined with other HullSonic systems to extend protective range and/or anti-fouling intensity.
Ultrasonic Anti-fouling System for use on Hulls & Running Gear
Vessels up to 50’/15m
- Auto-Calibration: Advanced technology to automatically calibrate each channel.
- ECO/STANDARD/BOOST Modes: A convenient built in ECO low power mode is built-in and will reduce the power consumption drastically. For use with lower power solar and wind charging systems. HullSonic also offers the STANDARD mode for normal operation and if required a BOOST mode that will increase the output!
- Sleep Mode Built-in: All HullSonic models come with a built-in sleep mode to shut the output down for 4 or 8 hours. Rest knowing the system will commence protection again automatically.
- True 50 Watts per Transducer: HullSonic HS & MAX generate 50 Watts peak of ultrasonic output per Transducer, thats a 100W peak output! The acoustic sonication generated disrupts and prevents algae and barnacles attaching to your hull.
- Polycarbonate enclosure: Rigid and strong, providing excellent impact resistance IP67 rated.
- Lexan Label: Tough label / button plastic for reliable long life.
- PVC Transducer Housing: Blended flame retardant additive PVC housing for inert ultra long lasting, touch transducer housings
- Anodized Aluminium Footprint: Light weight strong and corrosion resistance anodized transducer mounting pad for easy install and long life
- Silicone Rubber, Tinned Copper Cabling: Only the best long lasting tinned copper silicone rubber cabling for Transducers and DC Power.
- Completely Encapsulated Transducer: Completed sealed / encapsulated and degassed Urethane potting to protect each Transducer.
HullSonic HS400 Ultrasonic Antifouling System — 4 Transducers, Full 4-Channel
HS200 & HS400 Features
- Voltage
- Control Module
- Display
- Per Channel Output
- Channels
- Power Modes
- Connectivity
- Base Functions
- Additional Functions
- Test & Calibration
- Certifications
- Frequency Range
- Warranty
- Manufacturer
- 12 & 24 VDC Input
- IP67 - Polycarbonate
- Full Colour
- 45-55W user-adjustable, 50W default
- 4 Channels
- ECO / STANDARD / BOOST
- WiFi - Config, Diag, OTA
- Sleep
- None
- Auto Test & Auto Calibration
- CE, FCC, C-tick, ROHS
- 19 - 80kHz - Auto Calibrating
- 3 Years RTB
- Globatech Australia
MAX2 & MAX4 Features (CleanAHull)
- Voltage
- Control Module
- Display
- Per Channel Output
- Channels
- Power Modes
- Connectivity
- Base Functions
- Additional Functions
- Test & Calibration
- Certifications
- Frequency Range
- Warranty
- Manufacturer
- 12 & 24 VDC Input
- IP67 - Polycarbonate
- Full Colour
- 45-65W user-adjustable, 60W default
- 4 Channels
- ECO / STANDARD / BOOST
- WiFi - Config, Diag, OTA
- Sleep, Isolate, Alarm Output
- Boost Input, Heterodyne Auto Grouping
- Auto Test & Auto Calibration
- CE, FCC, C-tick, ROHS
- 19 - 80kHz - Auto Calibrating
- 3 Years RTB
- Globatech Australia
Frequently Asked
Questions
Will it clean a hull that's already fouled?
No. HullSonic is preventative, not curative.
Ultrasonic energy stops organisms establishing; it does not remove barnacles, tube worm or weed that have already attached and hardened. Fit the system to a clean hull — ideally at a haul-out, with fresh antifouling applied — and it protects that clean surface from day one. Fit it to a dirty hull and you are asking it to hold a line that has already been crossed.
If your hull is currently fouled, clean it first. The system will then keep it that way.
Which HullSonic system do I need?
Vessel length is the first filter, and each product page states its coverage. But hull shape matters as much as length — a smaller boat with a deep keel, a large sea chest and a warm-water berth can need more transducers than a larger, flatter hull in cool water.
If you are between two models, send us your hull layout and where the boat lives and we will tell you honestly which one you need. We would rather size it right than sell you more than you need.
Will it work on my hull material?
HullSonic works on fibreglass, aluminium and steel hulls. Each channel auto-calibrates to the acoustic properties of the section its transducer is bonded to, which is exactly why the drive frequency is swept rather than fixed — hull material and thickness change how a transducer loads, and the system measures that instead of assuming it.
Cored, foam-sandwich and heavily insulated sections need mounting-location advice, because the core interrupts the acoustic path. Timber and ferrocement hulls are case-by-case. Contact us with your construction and we will tell you before you order whether it will work, and where the transducers should go.
Will I be able to hear it?
In a quiet cabin, possibly — some owners report a faint periodic tick or chirp through the hull, particularly at night or when the transducers are mounted close to a berth. It is quiet, intermittent, and most owners stop noticing it within a week.
Mounting location makes the difference. If a quiet interior matters to you, tell us when we help you place the transducers.
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Our warranty policy is 3 years for all products.
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