Freecall: 1800 720 018

Overheating Engine Alarm

Engine Alarm

Suits: cars, trucks, boats, motorbikes, heavy equipment, generators

Suits: cars, trucks, boats, motorbikes,
heavy equipment, generators

Freecall: 1800 720 018

ENGINE GUARD Overheating alarms – get warned BEFORE damage occurs

Engines overheat and fixing the damage can cost serious money. In most cases no warranty or insurance applies. You pay the repair bill & do without your car until it’s fixed.

That’s why you need an ENGINE GUARD.

  • LOUD audible warning – keep your eyes on the road & drive more safely.
  • Get warned BEFORE damage occurs- super fast response compared to factory gauges.
  • Works if you’ve LOST coolant- shows cylinder head temp. Most factory gauges don’t work without coolant.
  • Digital display in degrees- provides feedback to MANAGE engine temperature.
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About Engine Guard

The Engine Guard uses a completely separate sensor and an accurate digital display- totally independent of the factory temperature gauge. This will enable you to see changes in real time- quickly and accurately and avoid engine overheating. YOU set the audible alarm to warn you if the temperature is higher than normal.

Other models: the ENGINE GUARD can do more. It can also monitor the temperature of your transmission at the same time- great to know if you’re towing a caravan. Transmissions have dramatically shortened lifespan if overheated and can also go into ‘limp home’ mode without any warning- guaranteed to ruin your travels! ENGINE GUARD can also be used to monitor engine oil temperature- a great feature on turbo diesel engines.

It can also be used as an AUDIBLE low oil pressure warning, or to monitor voltage with an alarm to warn of low or high voltage.  This is ideal for vehicles with dual battery set-ups.

Order 2 or more units, we’ll ship it FREE!

Customer Testimonials

Mini Cooper S engine saved

I recently purchased Engine Guard unit for 2 vehicles. First install was to my 2008 Mini Cooper S. They have aluminium block as well as aluminium head, and are designed to run hot.
I also fitted new silicon coolant hoses. I used 2 sensors, one fitted to the head/inlet manifold at the water pump end. The other was attached to the opposite end of the head at the thermostat housing and radiator hose end.
I drove the car intentionally hard to force maximum temperature. Just as I was changing down gears for my driveway, the Engine Guard alarm went off showing a warning for both sensors. Luckily I was 50 metres from my driveway.

One off the new stainless hose clamps had failed and the lower radiator hose had blown off.

I was extremely impressed with the warning and on checking under the bonnet noted the alarm was so quick to alert me that the radiator hadn’t even had a chance to empty fully. I had set the alarms at 5 degrees above max running temp.  Also worth noting the head temp varies up to 12 degrees at each end. Worth fitting dual sensors in my view.
I am a mechanic with nearly 50 years experience. I’m very impressed

Greg Walker

Great Product!

Hey guys! Just wanted to say thank you for creating such a great product. On Tuesday your engine guard saved my engine when I lost all my coolant. Absolute top product and I won’t have another car without one!!

Great product

Ordered 2 units, one for the tractor and one on the truck, such a relief not to have to worry about overheating engine damage.
Easy installation and setup and fast delivery, couldn’t be happier.

Shane mudge

After Sales Service

I have had Engine guard on my 2009 Colorado for a few weeks and very happy with it and it does what it says it does. I had two queries and within minutes of sending an email I got a call from Phil who was patient and explained how to fix it in simple black and white English. No technical BS. Thanks Phil and a good Aussie product with Engine Guard.

Randy La'Brooy


Life Saver

With the recent loss of water thru a old heater hose I was starting to get worried that I would cook my motor. I now have peace of mind knowing that ENGINE GUARD is going to alert me when the motor gets hot. Easy to install. Thanks to the team at Engine Guard.


Stuies Adventures 4x4

Saved us needing a new engine!

I installed the Engine Guard 15 months ago and it kicked in today letting us know the engine was overheating saving us the expenses of a new motor in our bt50!
Just want to thank you for this great product ?

Robert Burrows

I drive a 25 year

I drive a 25 year old Rodeo Ute. A couple of years ago it had some overheating issues ….. old radiator chocking up with crap ….. bla, bla, bla. Thankfully I was watching the temperature gauge, the day it happened, and avoided a disaster, and we fixed the problem. 2 ish years down the track I installed an Engine Guard, because I was travelling from Innisfail to Brisbane …. 1600 ish kms away, and I didn’t want to be continually checking the temperature gauge on the way. Peace of mind was bloody awesome.
Best bit of after market money I have ever spent on the car.

Carolyn Crocker


The Best after sales service I have experienced in memory (I am Old) would recommend the product and supplier five stars.

Steven Pitt

Melia Pty Ltd

Piece of mind

I have a 2004 Prado and we are towing a camper trailer everywhere I like to think I watch my gauges but this is a fool proof must when I’m to busy with the road and Roo watching I know this is watching my motor so that’s one less I need to worry about, and installing was really easy I’ll look forward to more travelling knowing I have a backup monitoring system in place.

Cheers and thanx for your invention. :-)

Danny Graham

Peace of mind for an older vehicle

I have a 1987 Porsche 928, I just spent big bucks on a transmission rebuild after it filled with radiator water from a ruptured oil cooler in the radiator. To prevent this disaster from happening again I bypassed the radiator and installed an external transmission oil cooler, for added peace of mind I bought the 2 channel Engine Guard, the head unit fits in place of the dashboard ash tray and I now monitor the transmission and engine temperature. What’s also great is that the Engine Guard remembers the settings even with the battery disconnected which I have had to do while undertaking other maintenance work on the car.

Peter Schmidt

Top stuff

Had a problem ( now solved) of our Genset loosing raw water to the rubber exhaust and cooking it, twice. Now I’ve installed a duel sensor for head temp and nest temp so we can get an early warning of flow issues. Also now have one monitoring the mains exhaust temps to protect their rubber hoses too.

Temp in the photo is 36 degrees as I had only just welded the nut to the stainless exhaust section to secure the sensor.

Having worked on a tourist boat that had the fiberglass exhaust catch fire ( total loss of vessel) it’s not an experience I want to repeat!

Cheers ?

Bruce MacLennan

Brisvegas cruises

Came super quick and look quality built

Had a question before installing so gave them a call and with in 2 minutes he explained everything in a way i (minimal electrical knowledge) could understand 110 percent would be buying again for all my cars

Joseph ferraro

Already paid for itself

This might sound like the commercials, in all honesty, this post is absolute truth.
After an overheat and limp mode etc after pressure from a crack in the head was over pressuring my cooling system and popped the plastic top off the radiator as well as constantly spitting out fluid, I took my 4WD to my mechanic to actually find that crack in the head. Whilst the head was off the block my mechanic noticed excessive bore wear in piston 1 and 4. Usually from towing caravans. So we proceeded with full engine rebuild.
After I got the vehicle back I immediately installed an Engine Guard to give me that sense of security rather than relying on the stock dash gauge.
So, after 4 years and only around 40K Klms, I started to notice my 4WD running slightly hotter than it had previously. Not much of a change, maybe 4 to7 degrees Celsius. The dash gauge remained at normal operating temperature mark. Towing my trailer resulted in a 10 degrees Celsius difference. The digital display works wicked in noticing slight changes. So, back to mechanic.
We found that the clutch on the engine fan had failed, unfortunately (then again maybe a bonus) my vehicles fan and water pump are one unit.
Without Engine Guard I would not have noticed those slight elevations in temperature and possibly ended up with a bigger mechanic bill than what I had.

Gertenaar Aust

Terrific product.

On long trips I often found myself unaware of just how hot my engine was getting. I was too busy watching the road.
Since getting EngineGuard I now know the exact temperature she’s running at, for about a hundred, bargain.
You’re mad to travel without one.

John W. Eastoe

Brilliant piece of protection!

I just installed Engine Guard to my 38foot Baycruiser on a 120hp Fiat diesel. Have to say it’s a remarkable unit. It took less than an hour all up from start to commissioning.

John Muntz

Better safe than sorry

We’ve been using these in all our classic cars we buy. They’re a great safe guard and heaps easy to install I have no trouble with installation.

Rose Holmes