There is an adjustable frequency range of 15 to 25 khz to cover up to 900 square feet.
Bird deterrent ultrasonic.
While birds do react to sounds faster than humans they still have the same audio frequency hearing range that we do.
Use more deterrent methods.
A weatherproof exterior helps this repeller last for reliable outdoor use.
This is beyond the range of normal human hearing so it is harmless to children it is but well within the audible range of birds and works to scare them off.
The emitted sounds annoy pest birds drives them away to areas that are more calm untreated.
Aside from using an ultrasonic deterrent you should also employ other methods like shiny discs decoy predators scare tape chimney cowls and more.
This device produces high pitched ultrasound waves of 15 000 25 000 hz and periodic chirp sound to eliminate birds from perching and roosting.
Bird x balcony gard ultrasonic bird repeller this deterrent uses ultrasonic sounds almost inaudible to humans but effective against birds.
The balcony gard is a low profile bird control device that uses ultrasonic sound waves silent to most humans high pitched and irritating to birds to force away unwanted pest birds small animals.
Ultrasonic bird deterrent devices are far more eco friendly and humane than unsafe bird control products that use traps or poisons.
The first marvellous ultrasound bird repeller should be put in your shopping cart is the bird x ultrasonic bird repellent.
The bird x balcony guard ultrasonic bird repeller utilizes ultra sonic sound waves to efficiently and effectively frighten annoy and control pigeons other birds and bats within a 900 sq.
Choose an ultrasonic sound device to scare birds away and you can feel better about not harming the pest birds or the environments they inhabit.
Ultrasonic bird repeller puts out 90 db of sound pressure at 1 meter.
It covers up to 900 sq ft and has adjustable sound range volume and modes.
Ultrasonic devices the trouble with these bird control devices is that birds cant hear the sounds emitted by them and there is no scientific evidence that these devices actually work.
Bird repellent reflective scare rods ornamental spiral deterrent control device with bonus replacement string 15 inch 8 pack 3 9 out of 5 stars 2 302 14 95 14.