The Most Effective Electronic Rust Protection System Available

Cars and Motorcycles

Image of cars and bikes with electronic rust protection

Recreational 4WD's

Image of a 4WD car driving in the sand

Mining and Industrial

Image of a mining car with corrosion protection

Trucks and Transport

Agriculture and Earthmoving


Key System Information

Purpose designed for Rust Suppression !

The CAT Electronic Anti-Corrosion System is purpose designed to suppress rust developement in motor vehicles, trucks, buses, air conditioners and many other types of plant and machinery.

Auto-Switching 12V or 24V Operation !

The CAT System will operate from either a 12VDC and 24VDC battery or power source and the unit will automatically detect the input voltage and adjust its function and diagnostic accordingly.

Modular Design - Easily Expandable

The Main Generator Module has 2 output circuits. Each output circuit is capable of supplying up to 6 coupler pads linked in series (or a total of 12 Coupler Pads for both circuits). Additional coupler pads can be added at any time to boost the operation of the system.

Shockproof and Waterproof !

The entire system including Main Control Module, Coupler Pads, Wiring Harness and all connectors and both shock and waterproof (exceeds IEC529, DIN40050 and IP67 standards).

DIY Consumer Installation Kits

Image of an electronic circuit
2 Pad System

Phone Us on 1800-188-808 for Pricing or Click Here to Submit a Quote Request Online

Image of a 4 PAD KIT for a car
4 Pad System

Phone Us on 1800-188-808 for Pricing or Click Here to Submit a Quote Request Online

Image of a 6 PAD KIT for a car
6 Pad System

Phone Us on 1800-188-808 for Pricing or Click Here to Submit a Quote Request Online

Image of a 8 PAD KIT for a car
8 Pad System

Phone Us on 1800-188-808 for Pricing or Click Here to Submit a Quote Request Online

Image of a 10 PAD KIT
10 Pad System

Phone Us on 1800-188-808 for Pricing or Click Here to Submit a Quote Request Online

    Use this Selection Guide to find which CAT System best suits your requirements
  • Select "Select Vehicle / Equipment Type" 1. Single Cab Utility2. Dual Cab Utility3. Sedan4. Wagon or SUV5. Van or People Mover less than 9 seats6. Motorcycle or ATV7. Trucks, Buses, Machinery8. Air Conditioner

  • Select "Tray Type" 1. Steel Tray2. Alloy Tray
  • Select "Chassis Length" 1. Less than 7m2. 7m to 10m3. Greater Than 10m
  • Select "Air Conditioner Size" 1. <10kw2. >10kw
  • Select "Vehicle Use" 1. On Road2. Off Road3. Beach Use - Occasional4. Beach Use - Frequent5. Snow6. Construction, Mining, Agriculture
  • Select "Vehicle Condition" 1. Brand New - No Rust2. Some Surface Rust3. Moderate - Heavy Rust
  • Installation ? (DIY Fitting is Recommended)1. I will install it myself2. I will need it installed
  • (* Required)

    Send me a Quote ? YesNo
    (* Required)

    What is ZIP pay ?
    What is afterpay ?

    10 Year Guarantee

    (T's & C's apply)

    Free Shipping

    Free Shipping Worldwide for orders over $100.00

    Refunds & Returns

    All systems come with a FULL-30-Day money back guarantee.

    Customer Reviews

    Cameron H.
    Cameron H.
    Verified ownerVerified owner

    Goods arrived from Perth to north QLD on 3rd day after placing order Info provided & speed of replys outstanding

    3 weeks ago
    Jeff Proctor
    Jeff Proctor
    Verified ownerVerified owner

    I have used this system in previous cars I've owned so I know it works and must say how impressed I was with the speed of delivery (included in the purchase price) and the easy to follow installation guide - happy camper!!

    1 month ago
    Etienne Theart
    Etienne Theart
    Verified ownerVerified owner

    Really happy with service, delivery time and product.

    2 months ago
    Verified ownerVerified owner

    Delivery time Perth to Brisbane under 24hours. Time will tell on product.

    3 months ago
    Neville G.
    Neville G.
    Verified ownerVerified owner

    Extremely fast friendly service. Exactly as described and easy self-install.

    3 months ago
    Verified ownerVerified owner

    Hi people,
    Phil from Cat systems was very helpful over the phone, I placed my order on a Friday and it arrived on Monday, hopefully it does what it is supposed to and keeps My pride and joy rust free.

    4 months ago

    Why Choose CAT ?

    Not all electronic rust suppression systems are the same !

    A "negative electrolysis" - "impressed current" system like CAT is the ONLY method effective on ‘free air structures’ like motor vehicles and mobile plant and machinery. You can be assured that everything associated with CAT is quality and with a CAT unit protecting your asset there is nothing in the world that could be doing a better job.

    An Innovative Product for Harsh Conditions

    For more than 28 years our team of engineers have been researching and developing the CAT System which is a versatile product that constantly delivers outstanding results. CAT are the leaders in ERPS (Electronic Rust Prevention System) with thousands of satisfied customers worldwide

    Modular Design - Expandable

    CAT's unique modular design allows for easy expansion at any time. Expansion Packs are readily available and can easily extend the operation of the system from 2 Pads up to a maximum of 12 Pads.

    Your Partner in the War Against Rust!

    Electronic rust proofing extends the life of vehicles and machinery by reducing the damaging effect of rust and corrosion. This saves owners money and provides peace of mind.


    The CAT ERPS System is certified to Australian/New Zealand, the US and European electromagnetic compliance standards and are built to ISO 9001:2000 manufacturing and procedural requirements.


    All CAT systems are covered by 10-year product replacement guarantee and for the local Australian market we also provide a vehicle corrosion warranty for up to 10 years.

    CAT for Air-Conditioners

    Our range of Electronic Rust Protection Systems will provide an effective and affordable rust suppression solution for any size residential and commercial air-conditioner.

    This advanced technology has been tried and proven in Australian conditions and is the preferred choice of many air-conditioning professionals.