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About Outbax

We provide your camping and outdoor needs at consistently low prices,
without compromising quality.

At Outbax, our team of 60+ staff are passionate about offering quality products at a low price.

Customer service is the core of our business. We have 24 full-time customer service champions to answer all of your queries and you’ll never be caught unaware with our 60-day money back guarantee.

You can preorder this product. Dispatch: Dec 29th, 2023

Product highlights

Extra 15% off using the code WHITE
Hurry! Promo ends 13/12/23 11:59pm AEDT

Voted Australia's Best, 2018, 2019, 2020 & 2023!
Plus FREE SHIPPING* to most areas!

  • Pull start
  • Runs quietly at 58dB @ 7 metres
  • 5.7L petrol capacity for 6.2 hours (50% load) run time
  • 565 x 320 x 470mm
  • 28 kg


Have a question? Ask our experts!

Product Details

Most suited for camping and road trips

The Gentrax 3.5kW Pure Sine Wave Petrol Inverter Generator is your best mate for camping and road trips. This ultra-handy unit houses several top-notch features for a camping generator, such as:

  • 4-stroke engine for increased efficiency
  • Pure sine wave output to power sensitive devices safely
  • Lightweight – Just 28kgs

Quiet yet super powerful 

  • Easily powers an air conditioner, a mini-fridge, and some lights.
  • Runs quietly (58dB @7m) for up to 8 hours
  • Conveniently charges a battery with the 12V 5amp outlet. (The battery clips are included in the purchase).

Good for you, good for the environment

  • Comes with dual Australian-approved, weatherproof 15amp AC outlets and integrated overload protection for easy maintenance!
  • EURO 5 certified, i.e., not harmful to the environment.

It's no wonder Product Review has voted them the best generators in the Australian market!

If you are looking for a generator with higher power output, check out our full range of inverter generators here - from petrol generators to auto-start generators, you can find a wide variety at Outbax. You can also view our Generator Buying Guide and reach out to our customer service team for any inquiries. Shop now!

The GenTrax 3.5kW Pure Sine Wave Petrol Inverter Generator is your best mate for camping and road trips with a 4-stroke engine for increased efficiency and a pure sine wave output to power even the most sensitive devices. At 28kgs, our Gentrax generator makes sure you get reliable power without the extra weight.

Suitable for:

  • Air Conditioners
  • Washing machines
  • Small Fridges
  • Televisions
  • Laptops / Computers
  • Microwaves
  • Power Tools
  • Gaming consoles
  • Water pumps

Need help with choosing the perfect generator for your needs?

Check out our generator buying guide to learn the basic terms and average power requirements for many appliances and use cases.


Perfect for:

  • Camping
  • Construction
  • Back up power
  • Off Grid
  • 60,000+ UNITS SOLD
    60,000+ units sold Australia wide since 2010
  • Winner since 2018. Rated Australia's best generator
  • Full Australian Warranty under Consumer Law
  • Quiet as a mouse

    All GenTrax generators operate at 58 decibels @ 7 metres. This is incredibly quiet – similar to TV playing on low volume.

  • Cleaner, Smoother, More Reliable

    All GenTrax generators use Pure Sine Wave technology, producing cleaner, smoother, quieter, and more reliable electricity.

  • Pass the test

    All of our GenTrax generators are EURO 5 certified, which means they pass the emission standards to be sold in Australia. You’re ensured your generator won’t harm the environment.

  • Weight and Size

    Our smallest GenTrax generator (800W) is 8.5kg and our most popular model, the 3.5kW, is only 28kgs. Equivalent models such as Honda (35kg) and Yamaha (67kg) are much larger.

over 4000+ 5 star reviews

With over 4000+ 5 star reviews across TrustPilot, ProductReview and left on our own website, you can be sure you’re making the right choice for your power needs.



  • Pure Sine Wave Smooth and efficient
  • 4 Stroke 157F engine
  • Low oil/overload protection
  • Super Quiet runs at 58dB
  • ECO mode for greater fuel efficiency
  • Real output claims Trusted engine supplier

Available in a remote start model

Our best-selling 3.5kW generator now available in a wireless remote model allowing you to operate the generator from up to 10m away and keep an eye on the output and running time with an LCD built into the unit.



  • Meets Euro 5 emissions standards
  • RCM Australian Standards Approved
  • Low oil/overload protection
  • United States EPA Certified
  • Independently tested and authorized for safety and quality for Europe
  • Pure Sine Wave Smooth and efficient

Enjoy extra comforts even while off-grid and easily power an air conditioner or maybe a mini-fridge plus some lights. This portable generator runs quietly at 58dB for up to 8 hours, so you get to use your appliances for long without disturbing your fellow campers.

Need to charge a battery? No worries, it can also get the job done with its 12V 5amp outlet and included battery clips! You won't even need to worry about durability as this has dual Australian-approved, weatherproof 15amp AC outlets coupled with integrated overload protection for easy maintenance!

If you're looking for a quiet generator for camping, this is definitely your best pick. All of our Gentrax inverter generators for sale are EURO 5 certified too, which means they're not harmful to the environment. It's no wonder they've been voted by Product Review as the best generators in the market!

Technical specs


Max. Output: 3.5kW
Rated Output: 3.0kW
Start Type: Pull start
AC Voltage: 240V
DC Output: 12V / 8.3A
Number of AC Outlets: 2
Engine Type: Air-cooled, 4 Stroke, OHV, Petrol engine
Engine Displacement: 149.5 cc
Engine Speed: 5500 rpm
Ignition System: T.C.I
Fuel Type: 91 RON
Fuel Tank Capacity: 5.7 Litres
Oil Type: SAE 10W30
Oil Capacity: 1 Litre
Noise Level: 58 dB (7m)
Spark Plug: A7RTC(TORCH)
Rated Continuous Operation: 6.2 hours


Dimensions: 565 x 320 x 470mm
Weight: 28 kg


1 x Generator
1 x Generator Cover
1 x Funnel
1 x Battery Charger Cable
1 x Maintenance Tools




What's the max output per socket?
Is there a way I can connect this generator to a larger fuel tank to extend the run time?
Can I run a generator in the rain?
Do this generator have a digital inverter?
Is this generator suitable for home use as well?
What is an inverter generator and why does it matter?
What is pure sine wave and why does it matter?
What appliances can this generator power?
What type of oil is best for Gentrax inverter generators?
Can I use this generator in a National Park?

Shipping and delivery

  • Your item will be shipped next business day.
  • On average, items are delivered between 3 to 7 business days following shipping around Australia.
  • Check out our shipping and delivery calculator above for more information.
  • We can't ship products to PO Boxes, Parcel Lockers or Post Offices. We need to have an actual address to proceed with the order.


  • Outbax offers a 12-month warranty on all products from the date of purchase unless otherwise stated. Outbax warrants its products against defects in materials and/or workmanship. This is further to your rights under Australian Consumer Law.
  • Outbax products come with a 60-day money-back guarantee. You must contact us within 60 days of receiving the product and it must return in its original condition.

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