Popular methods to get rid of rats

Efficacy/Disadvantages

It is said rats can survive nuclear fallout. They indeed are one of the more hard to get rid of pests. The more popular methods to get rid of rats namely poisons, bait stations and glue pads are mostly dangerous and ineffective and do not offer any permanent solution.

Poisons

Most poisons are required to be mixed with food as bait. It is reported that rats are becoming immune to most of the common rat poisons. Poison manufacturers are increasing the poison strength to compensate, which again is fraught with danger. Poisons are a eminent danger to the person preparing and handling the poison, kids who may accidently ingest them and pets which may eat a poisoned rat.

Bait stations & Glue traps

They are both bait centric. It is very common to find the bait eaten and no rat trapped. Bigger rats manage to free themselves from pads.

Rat sprays

The effect of sprays last for days to a month. It’s a recurring expense.

To summarize - When it comes to cars if you manage to kill or trap one rat, another rat will take its place. None of the previously mentioned give a 24/7 protection nor one time solution. bait eaten and no rat trapped. Bigger rats manage to free themselves from pads.

CARCAT - Ultrasound rat repellent

CARCAT Duo does not kill or trap rats. It repels them away from the car. The ultrasound emitted makes the environment unfavourable for rats to carry out their usual business of chewing wires or ducts or plastic and foam parts. The protection is 24/7 and it is a one-time solution.

Efficacy testing of ultrasound rat repellent

2 chamber tests

Test setup

2 chambers, approx. 330 sq. ft. each. Both chambers were fitted with a similar ultrasound rat repellent. During the test one or both ultrasound devices would be switched on or off. Both chambers were connected by a narrow acoustically damped tube, just enough for a rat to pass from one chamber to another. The connecting tube had a stopper which could be opened / closed to introduce a rat.