Cavius 4002 Carbon Monoxide Alarm Safety Recall

March 2024

At Cavius, safety is our top priority, and we are committed to always operating with integrity in everything we do.

Cavius is part of the Carrier Fire & Security segment, which also includes the Kidde brand. Kidde is one of the world’s largest manufacturers of fire safety products, built on a 100-year history of quality and reliability with a mission to make the world a safer place.

As experts in the home safety space and manufacturers of products that help save lives, our top priority is customer safety, which is why we have rigorous and ongoing quality control testing.

During routine internal testing of all our devices, it has become apparent that the Cavius-branded model 4002, with batch codes from 19xxxx to 23xxxx, does not currently meet our standards due to a delayed response time for triggering the alarm, which occurs later than the voluntary Standard EN 50291-1:2018 displayed on the product. This delay may lead to exposure to carbon monoxide, which may cause potential headaches.

We regret that this issue has occurred and are working to correct it.

Cavius 4002 Carbon Monoxide Alarm Safety Recall

How can you identify if your model is affected?

There are two ways you can check this:

1) The original packaging will show the Cavius logo and product model “4002” or “CV4002.”


2) If you have discarded the original packaging, remove the alarm from the base. The fold-out label on the rear will show “Cavius 4002-xxx” where xxx is 001, 002, 003, 004, 006, 008 or 012.

Cavius 4002 Carbon Monoxide Alarm Safety Recall
Cavius 4002 Carbon Monoxide Alarm Safety Recall
Cavius 4002 Carbon Monoxide Alarm Safety Recall

For additional product information, please visit 

If your model is affected

If you have identified that your model is one of the batch codes listed, you have the following options available to you:

  • Return to any retailers of the same chain you bought it from;


  • Contact Kidde Safety Europe Ltd either by email [email protected] or by phone +44 3337 722227 to find out how you can return your product;

Upon return, you will be provided with a replacement carbon monoxide alarm (Kidde K10LLCO), free of charge. 
If you do not wish to accept the replacement product, you can alternatively request a refund from the retailer you bought it from or any retailer that is part of the same chain of store.

We thank you for your trust and understanding.

We continue to be vigilant in identifying, reporting, and mitigating any potential safety risks in our products and services, and we remain committed to providing safe and reliable fire safety products for our customers around the globe.