Deer whistles have been around since the late 1970s. They are a small device that is attached to the front of a vehicle. As air moves through this device it produces an ultrasonic whistling noise. Deer whistle manufacturers claim that it lets deer know that there is a moving vehicle heading their way. The range for the deer whistles is one-quarter mile and only works if the vehicle is travelling at least 35 miles per hour.
Measure the area in the front of your vehicle to ensure that there is enough room to install the deer whistle. The ideal place is in the grill where the most air flow occurs.
Clean the area with soap and water. Rinse well so there is no soap scum left.
Clean the area with rubbing alcohol. This removes any oil, wax or other substance that will prevent the deer whistle from sticking.
Wipe the base of the deer whistle with rubbing alcohol to remove any manufacturing dust and grit. Attach the double-sided sticky tape to the bottom of the deer whistle when dry.
Stick the whistle on to the grill. Double check that the deer whistle is level with the horizon. Keep the deer whistle facing forward.
Most deer whistles are activated by your vehicle's speed. Some versions of a deer whistle are electronically powered that produce ultrasonic sound no matter how fast your vehicle is travelling. If there is no room in the grill of your vehicle to install the deer whistle, then mount the deer whistle on the top or bottom of the bumper.
The effectiveness of deer whistles has not been scientifically studied. The few before-and-after studies that have been conducted are anecdotal. Studies are being conducted to determine if deer can actually hear the frequency of the whistles.