Amazon.com Review
The P3 International P7900 Sonic Molechaser makes moles scram by emitting a penetrating sound that sets the rodents' sensitive hearing on edge. Operating in a circular pattern of 120 feet, the Molechaser also chases off ground squirrels, shrews, voles, pocket mice, and gophers. It won't harm the rodents or your earthworms or your pets; it won't even harm your lawnmower, because you can bury it flush with the ground. At 1-3/4 inches in diameter and 16 inches long, the stout aluminum Sonic Molechaser doesn't require an excavation of your garden. Plus, you can replace the four D-cell batteries--approximately once every 4 to 6 months--without digging it up. The Molechaser gives off 300 Hz of sound at 15-second intervals and works best in unobstructed, moist clay soil. If soil is dry, sandy, or peat soil, you may need a couple of Molechasers to get rid of moles for good.
--Emily Bedard
Product Description
The Molechaser is the easiest, most environmentally friendly way to get rid of moles, voles, gophers, shrews and other burrowing rodents. Simply bury the sturdy aluminum Molechhaser in your lawn and rodents will be on their way! Unit produces a penetrating underground sonic impulse that irritates rodents and motivates them to move to a quieter area.