The Big Cheese Cat Repeller
The Big Cheese Sonic Cat Repeller
There are many ultrasonic cat deterrents on the market, but the Big Cheese seems to be the one which gets the best reviews.
This Sonic Cat Repeller uses a Passive Infra Red detection system, constantly monitoring a fan shaped area of a 98 degrees arc up to a distance of 12 metres. Any animals moving into this area trigger a burst of continuously variable ultrasound, which sweeps a frequency range of 18,000Hz – 24,000 Hz to repel them. There is a test button on the device which drops the frequency into audible range so you can check it is still working.
It also incorporates an LED indicator to indicate when the device is activated
The device is powered by two 9V alkaline batteries, although a mains adapter can be purchased separately.
Battery power is conserved by the PIR detection system, which allows the unit to remain on stand-by between activation periods, therefore maximizing battery life.
A couple of things to consider:
If you can’t use a mains adaptor for this device you might want to invest in some rechargeable batteries, otherwise you might find it expensive in the long run
Some cats are hard of hearing so they might have an immunity to the Big Cheese Sonic Repeller.
Cats will become accustomed to the location of the device over time, so you may need to move it around every now and again to keep it an effective deterrent.
