When our cat brought us a "gift" - and everything changed. 

How a moment of shock led to an invention that now protects thousands of cat owners.

We have two cats — Amber and Smokey, two beautiful Chartreux. We love them; they’re part of our family. But as many cat owners know, these little hunters don’t just bring joy — sometimes, they bring unexpected surprises too.

 

To give our two the freedom to decide when to go in or out, we installed a cat flap.
A simple solution — at least we thought.
But what started as a small added convenience turned into a real nightmare one afternoon.

The day that changed everything

I was home alone with my little daughter. She was just a year old, happily crawling around the apartment while I stood in the kitchen cooking.
Out of the corner of my eye, I saw her crawl into the hallway — and then it went quiet.

When I looked, she was sitting on the floor. In front of her — and partly in her mouth — were the remains of a mouse one of our cats had brought in. Her mouth was smeared with green.

 

We went straight to the doctor. And while I sat there, worried sick, I came across something in my research — the hantavirus, a potentially deadly virus that mice can carry.
That was the moment I knew: this must never happen again.

The idea: prey detection for cat flaps 

I didn’t want to just get angry or give up — I wanted a solution.
Through my work as a technical project manager at BMW, I knew how to turn ideas into products.
So I started tinkering.

 

But I didn’t want to create an all-new cat flap that would make all others obsolete.
What mattered to me was that existing flaps could still be used — no need to replace the glass, with easy installation.

That’s how ZeroMOUSE™ was born — an upgrade for cat flaps that uses modern sensor technology to detect when a cat is carrying prey, and blocks access at that very moment.

ZeroMOUSE: A simple upgrad rather than having to buy something new

Many customers tell us today that this was exactly the key point for them:
they didn’t want to buy a new cat flap — they just wanted to upgrade the one they already had.

“ZeroMOUSE is like a seatbelt for my cat flap —
once it’s installed, I can finally sleep peacefully again.”
– Petra M., cat owner from Cologne

Installation takes only a few minutes. There’s no subscription, no hidden fees — and best of all: ZeroMOUSE™ is developed and manufactured in Germany.

Responsibility and Quality – Made in Germany

We develop our products just north of Munich, and manufacture and assemble them near Karlsruhe.
Every single unit passes through the hands of a dedicated team that stands behind our mission:

 

Safety for families – responsibility for animals and the environment.

 

From the first idea to today, five years have passed.
Today, ZeroMOUSE™ is the market leader in prey detection for cat flaps — with more than 10,5000 satisfied customers across Europe.

Thomas Prosser, inventor and CEO

Our Mission

What started out as a shock, became our clear mission: 

Cats can be proud
of their prey –
but our families
should stay safe.

More than 10.500
satisfied customers

4.3

|

636 Reviews

ZeroMOUSE™

Compatible with all Mickrochip-Tunnel-Flaps

Suitable for outdoor use 

Installation in less than 10 minutes

Try it out now – 60 Days Money-Back-Guarantee

Discover ZeroMOUSE™

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