It is important to know what you are buying and why you are doing so. Ensure you have all the information about how a bird deterrent works before purchasing. To cap it off, this device is small and discreet. It weighs less than 3 pounds, which makes it portable enough to be installed anywhere.

This device is not an instant fix for pest problems. It's a gentle approach to pest control and can take up to 2 weeks to make a difference. If you are looking for an "instant fix", the Multisound audible bird repeller might be worth looking at. MORE INFO>>>>>>> Another impressive feature of this device is its motion sensor. Once any bird is within 10 meters of the machine, it detects movement and emits threatening sounds to scare them off.Ultrasonic bird deterrents are devices that emit sound with high frequency and loudness to chase birds or other unwanted animals without any adverse effect on human hearing. As many recent repellers are motion-activated, the birds do not even need to be very close before the sound goes off. Applicable Bird Species It works on 4C batteries, which can last for about one month of continuous operation. The batteries are not rechargeable, so they would need to be replaced regularly, depending on usage. It has a power cord so it can easily be plugged in if mounted close to an electricity supply.

Like most good things, this product has its flaws. While it is weatherproof, the device is not very stable in a moist environment. Pros It uses a ‘Triple Scan Technology,’ which allows it to detect birds 115 feet out for 12,000 square ft of detection. It would work effectively in an open space.

BIRD CONTROL SALES AND INSTALLATION

It has a coverage of up to 4,000 square feet. This makes the Yard Gard perfect for large homes, gardens, and even fields. It has flexible functions for its LED strobe light, sound frequency. The frequency set would also determine who would hear the sound - If set to sonic, it would be heard by birds and humans, but at ultrasonic, it would be heard only by the birds. The Cleanrth Bird Repeller is a powerful motion-activated bird repeller. What makes it stand out is that it detects body heat rather than movement. This repeller is battery powered and comes with a 50 feet extension for plugging. This is unlike the Yard Gard above, which is not rechargeable. Pros

Birds like pigeons, seagulls, sparrows are the exception. Pigeons specifically detect infrared sound (below human hearing range) and not high-pitched sound. Therefore, choosing the right device would help to scare birds off effectively. Safety It comes in three adjustable modes: always off, detection mode, and always on. Many tend to prefer detection mode. Warranty would vary from brand to brand. Buyers might have installation issues or buy a device that doesn’t suit their needs. Therefore, you should do a proper warranty and maintenance search of the brand you’re buying. This way, you can chase away birds and not be worried about your bank balance. Warranty and Maintenance It emits ultrasound waves of 15,000 – 25,000 Hz and periodic chirp sound to keep birds away. The sound pressure of 90 decibels (dB) is beyond the human range of hearing, so it cannot be detected, but it annoys birds and scares them off.It can also be categorized based on the level of sound frequency. They can be low-frequency (under 10,000 Hz), moderate (10,000 – 20,000 Hz) and high frequency (above 20,000 Hz). The high-pitched sound produced by ultrasonic devices is far from the human hearing range, but it falls within the hearing capacity of birds.

Lastly, your pets might detect sound emitted from the device and become irritated. Ensure it is out of their range. Proper thought must be given before installing an ultrasonic bird repeller. Location Depending on the area you’re trying to protect, the device’s coverage and capacity should be considered. Many ultrasonic devices work best in semi-enclosed or enclosed locations where the sound waves can bounce off the walls and ceilings. As I’ve mentioned, the devices give off high-pitched sounds to scare off birds. The frequency of these sounds could be between 15,000 – 30,000 Hz, which destabilizes the nervous systems of birds. As many ultrasonic devices are installed outdoors, it may not be close to an electricity source. The best bet for outdoor use would be to go for those with solar rechargeable batteries. BudgetThere are several bird deterrents on the market, so choosing one can become difficult. The goal is to scare off birds and not harm or kill them. Therefore, the ultrasonic bird repellent is considered humane.