The expert: "Most of it is a scam – only one method really works"
They are fast. They are smart. And they get in almost anywhere.
Rats have become a nightmare for Swedish homes, cottages, and motorhomes.
They gnaw on electrical wires. They spread diseases. They leave behind a pungent smell that never really goes away.
And worst of all?
Most rat protection you buy – doesn’t work.
Sealing, traps, and poison – an old battle you can’t win
Sure, you can try to seal the house. But a gap of six millimeters is enough for rats to get in.
You can set traps. But for every rat you catch, a whole colony may remain in the walls.
You can use poison. But then you risk poisoning your pet or birds of prey in the area. And in many cases, it’s not even allowed anymore.
Ultrasound – a false sense of security
Many are attracted by the small cheap ultrasonic devices. They promise to keep rats away with high-frequency sounds.
But the truth? Rats are too smart.
They may be disturbed at first – but quickly get used to it. Then they go on living as if nothing happened.
– I meet many homeowners who have spent thousands on this type of repellent. They simply don’t work, says Örjan Johansson, researcher at Luleå University of Technology.
👉 Read more about Repello and order here
The new Swedish technology – Repello
This is where Repello changes everything.
Instead of meaningless ultrasound, Repello uses the rats’ own alarm signals.
For rodents, the sounds mean only one thing: acute danger to life.
The result?
They flee immediately – and avoid the area for weeks afterward.
✔ Tested by researchers at Luleå University of Technology and SLU
✔ Documented long-lasting effect – even when the device is turned off
✔ Poison-free, simple, and completely safe for humans and pets
– This is the first method that really works long-term, says Örjan.
“It was like the rats just disappeared”
Property owners who have tested the technology describe the effect as dramatic.
– I had rats in the basement for several years. When Repello was installed, they disappeared the same evening. It was as if they had never been there, says Mats, a customer of Repello.
The conclusion is frighteningly clear
Sealing holes is important – but it’s not enough.
Traps and poison are outdated, risky, and time-consuming.
Cheap ultrasonic repellents are a scam.
There is practically only one option if you really want to keep rats away: Repello.
The question is: do you dare to wait?
Rats don’t just settle for living in the walls. They spread diseases, destroy buildings, and can cause fires.
Waiting or relying on fake protections can become an expensive – and dangerous – mistake.
