About the cat deterrent. I purchased one from a company with a name like a flower.It was solar powered,and totally useless!When I contacted the company and chatted to a girl there,she said,like the comment mentioned in another review,that the cat would sit beside it and this was to intimidate the unit.--WHAT A LOAD OF NONSENSE!!She said the cat would lie in the garden,and ignore the unit,and this would go on for weeks,and this was the cat pretending not to be intimitated by the unit.It has to wait three weeks to be intimitaded---What a load of cobblers. I have another different unit,and immediately a cat came into the garden,it scarpered immediately.This is the way the unit should work.---The girl who told me about the other unit and the company are riduculous. Avoid this company.
A cat scarer should have an immediate effect,and if it does not,then it is no good.
Furthermore,another report said it would take four weeks for it to take effect. This is a total load of nonsense. The best thing is to shop about and get a good quality unit that will do what it is designed to do,to scare cats away.The unit should have an immediate effect.If the unit does not work,return it to the company and get a refund,do not take no for an answer.This is based on experience having tried several types of cat deterrer.