Is a rat repeller and a mouse repeller the same thing?

Often yes. Repello is one device that works on both rats and mice — some brands market the same product under both names. It is also called an ultrasonic rat repellent, rodent deterrent, electronic rat scarer or anti-rat device; they all refer to the same type of product.

Does ultrasound go through walls?

No. Ultrasound behaves like light: it fills the room it is in but does not pass through walls, doors or floors. That is why you place one unit per enclosed space — one in the kitchen, one in the storage room, one in the roof void, and so on.

Is it safe for pets and staff?

Yes. The signal is tuned precisely to rodent hearing and is completely inaudible to humans, dogs and cats. There is no poison and nothing anyone can touch — unlike rodenticides, which are a real hazard for pets, wildlife and children.

How many units does a villa or restaurant need?

One unit covers up to 40 m² of open space. Count your high-risk rooms — kitchen, food storage, waste area, roof space, garage or generator room — and plan one unit per separate room. A typical villa needs 2–3 units; a restaurant kitchen with storage usually 2–4.

Why not just use rat poison?

Poison creates new problems in a tropical property: rats die inside walls and ceilings and the smell lingers for weeks, dead rodents poison dogs, cats and birds of prey that eat them, and poison stations near a kitchen are a red flag in any hygiene audit. A repeller prevents the problem instead of creating carcasses.

How to get rid of rats without poison — for villas, hotels and restaurants

The short answer: skip the poison. In a tropical property the reliable, guest-safe approach is: seal the obvious entry points, keep food and waste tight, and make your high-risk rooms permanently uncomfortable for rodents with a scientifically tested ultrasonic repeller — one unit per room.

Rats are a business problem, not just a nuisance

In Bali and across Indonesia, rats thrive year-round: warm weather, dense vegetation, open kitchens and food waiting everywhere. For hotels, villas and restaurants the stakes are high:

Health. Rats spread leptospirosis (a real risk in the rainy season), salmonella and contamination of food prep surfaces.
Property damage. Gnawed cables are a common cause of equipment failures and electrical fires — generator rooms and roof voids are favourite targets.
Reputation. One rat crossing a restaurant floor mid-service can undo a year of good reviews.

Why poison and traps backfire

Rodenticide seems cheap and easy — until a rat dies inside a wall cavity and a guest room smells for two weeks. Poisoned rodents are also eaten by dogs, cats and owls, passing the poison up the food chain. And in a hygiene audit, open bait stations near food prep are a liability, not a solution.

Traps work for the individual rat that walks into one, but they demand daily checking, they are grim work for staff, and they do nothing to stop the next rat from moving in. The colony outside your walls simply keeps sending replacements.

Why most ultrasonic gadgets disappoint

Cheap “plug-in pest repellers” have earned a bad reputation, for two real reasons:

Random noise, not a signal. Most devices emit generic ultrasonic tones. Rodents startle at first, then learn within days that the noise means nothing — a process called habituation.
Speakers that wear out. Ordinary membrane speakers lose output in tropical heat, humidity and dust — typically fading after around 24 months, often without any visible sign.

So the category is not nonsense — the execution usually is. What matters is what sound is played and how it is produced.

What makes Repello different: it speaks rat

Repello is the world’s first rat and mouse repeller with scientifically documented effect. It was developed with acoustics researchers at Luleå University of Technology in Sweden, and instead of random noise it reproduces the rats’ own alarm signal — the pulsed ultrasonic sweeps (25–85 kHz) rodents use to warn each other of danger. The patterns shift continuously, so rodents never habituate.

The Swedish University of Agricultural Sciences (SLU) tested the signal in a field study in a building with a documented rat problem, monitored day and night with infrared cameras:

Over 90 % fewer rat observations once the signal was activated.
100 % deterrent response: every rat that entered the monitored area stopped, turned and left. None ignored the signal.

The sound element is a piezo unit in metal and ceramic — no membrane to wear out — and keeps full output for up to 20 years. It plugs straight into a 230 V socket (EU plug, the same type used in Indonesia), covers up to 40 m², and is completely silent to humans, dogs and cats.

Placement guide for a villa, hotel or restaurant

Ultrasound does not pass through walls, so think one unit per enclosed high-risk space:

Kitchen — the number one target, especially at night.
Dry storage / pantry — rice, flour and boxes are both food and nesting material.
Waste and loading areas — where rats first make contact with the building.
Roof voids and ceilings — the classic rat highway in tropical buildings.
Garage and generator room — cable damage prevention alone pays for the unit.

Combine with the basics: seal gaps around pipes and doors, keep waste in closed bins, and store food off the floor. The repeller then keeps the protected rooms permanently unattractive — silently, with zero maintenance.

What to expect, honestly

The effect builds over days, not minutes. Typical pattern in the first two weeks: fewer droppings and gnaw marks first, then activity fades from the protected rooms as rats reroute away from them. Rooms with heavy pressure (waste areas, older buildings) benefit from combining the repeller with sealing and sanitation — no serious supplier should tell you otherwise.

Pricing and ordering in Indonesia

AIRCURA is the official reseller of Repello in Indonesia. One unit is Rp 1,990,000, a 2-pack is Rp 3,590,000 and a 3-pack Rp 4,790,000 (about 10 % and 20 % off) — most villas and restaurants start with two or three units for the kitchen, storage and roof space.

See the product and order via WhatsApp — we deliver across Bali, offer on-site placement advice, and invoice after delivery as always.