Rats, like mice, can be a serious risk to health due to the various diseases they carry, including Salmonella, as well as causing structural damage to properties. Often seen in places where there has recently been demolition or construction work, where rubbish is lying around, in drains, as well as in rural areas, rats are a growing nuisance. With the abundance of food available, rats are less likely to take poisoned bait.

There are an estimated 60 million rats in the UK – that’s one for each person. Most of them are Common Rats (sometimes called the Brown Rat). Its average lifespan is 18 months and one pair can produce a colony of 2,000 rats in a year. In order to produce at such an alarming rate, up to 30% of the female rat population is pregnant at any time. Females become sexually mature at just 8-12 weeks and females are able to conceive whilst suckling a previous litter, often mating within 18 hours of giving birth. They breed throughout the year if the weather is mild and there is plenty of food. Up to 13 litters are possible each year, each one consisting of 7-9 young. They eat the equivalent of 10% of their body weight daily, consuming rubbish, leftover dog food, bird food and even dog excrement.

An ultrasonic rat repeller creates an uncomfortable environment that a rat wants to get away from. The plug-in repeller emits an ultrasonic noise that rats and simplt don't like. It's not painful or cruel, just annoying and they want to leave. 

Most of the ultrasonic repellers work in two different modes, but some have three.







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