Best Car Alarm in New Zealand 2025?

Best Car Alarm NZ

Best Car Alarm NZ

Best Car Alarm NZ

Who makes the best car alarm in New Zealand?

So you’ve just done a search for “Best car alarm NZ?” and  you’ve probably found some other sites telling to that the AVS S5 is the best, or maybe even the Mongoose M60G.

I’m going to suggest that you open your mind and look beyond the marketing, because I don’t recommend the so-called “big names” you usually hear about.

Why not the big brands?

Here’s a real email I got (and it sums up the confusion perfectly):

“Hi, I’ve been reading through some of your posts and see that you’ve flawed a lot of the big-name brands. Thanks ******”

The truth is, I don’t actually dislike most of the big brands. In fact, I rate many of them highly. But you’ve got to understand what a big brand really is, and whether they stand up internationally, not just in New Zealand’s small market.

 

Big fish, small bowl syndrome

New Zealand is a very small goldfish bowl in a very big ocean.

Ask your local car audio shop which alarm is best, and you’ll almost always hear AVS or Mongoose. The problem? You won’t see those brands sold outside of NZ and Australia.

Why? Simple: they don’t meet international standards.
They’ve just done a good job marketing themselves here in little old NZ.

And here’s the catch: most car audio shops are not alarm experts. They just sell what’s easy to get and marketed well.

There is a huge amount of misinformation thanks to AVS and Mongoose

Did you know that AVS and Mongoose are both sold through the same distributor?

It probably explains why the Star Rating System is quoted by both brands, despite being dropped back in 2012

 

Marketing vs reality

There’s a very fine line between good marketing and pure sales fluff.

That doesn’t mean they’re useless, it just means they’re not globally recognised or tested to international benchmarks.

The best systems meet international standards

If you want proper security, look at brands that are respected worldwide and tested to rigorous standards. The ones I tend to recommend are:

These are sold globally, meet international standards, and are trusted by manufacturers and insurance companies alike.

 

Which is the best car alarm in New Zealand in 2026?

Car Alarm Buyer's Guide
Car alarm buyer's guide

Here’s the honest answer: it depends.

The “best” car alarm in NZ varies depending on:

  • What vehicle you own

  • What features you need

  • Your budget

My car alarm buyer’s guide breaks down the best systems into categories to help explain what is the best option for you.

Do you need a car immobiliser as well as an alarm?

Short answer: Yes, if your car does not already have one.

An alarm and an immobiliser do two different jobs. The alarm makes noise and gets attention when someone tries to break in. The immobiliser is what actually stops the car being driven away. It cuts the engine’s ignition or fuel circuit so the vehicle physically can’t start without the correct key or fob. You can have one without the other, and a lot of NZ vehicles do.

Car anti-theft devices need to be installed to a high standard

Professional car alarm installation - car anti theft device installation done well.

Installation standards matter

You can’t make a cheap alarm (or outdated over-priced well marketed alarm) good by installing it perfectly as it already compromises how the installation can be done.

You can also ruin a top-end alarm with a poor installation.

That’s why I stress that a decent car alarm and a proper installation of all electronic car anti-theft devices is vital.

Best car alarms for car insurance?

Both AVS and Mongoose make false claims about insurance approved car alarms, quoting expired AS.NZS standards and bogus 5 star alarm ratings.
 

Red flags For Mongoose and AVS

My advice is to be cautions if you use either brand for insurance purposes.

Why do AVS and Mongoose quote expired standards?

They have the power to update their websites and notify all of their dealers but have chosen not to.

I don’t know about you but I’d rather be dealing with companies that are are honest. Especially when it comes to vehicle security systems.

Leave a Reply