Mole Repellent Solar Powered, 10 Pack Solar Mole Repellent Ultrasonic for Vole, Snakes, Gopher, Waterproof Sonic Mole Deterrent Spikes,Snake Gopher Vole Repellent for Garden and Yard

Working principle? Every 30 seconds, these mole repeller spikes emit ultra-low frequency sonic pulses penetrating the soil. The sound is extremely irritating to moles because they are virtually blind and thus overly sensitive to sound and vibrations. The sonic pulses encourage underground varmints to vacate the property and also discourage return visits. Easy installation in three steps: 1.Make a pilot hole in the ground using a wooden rod or steel rod. 2.Insert the mole spike into the ground, and make sure the top is above the surface roughly 1 or 2 inches. Place soil around the unit, securing. 3.Turn on the switch and expose yourself to the sun for 24 hours. Extensive coverage: Operates in a circular pattern, approximately 40 ft. in diameter. So it is recommended to use 12 solars mole repeller units per acre, and insert them every 60 inches. NOTE: Although the solar mole repellent is waterproof, it cannot be immersed in water for a long time, which will affect its service life. When encountering heavy rain or rainstorm weather, please take it out of the ground first, wait for the accumulated water to dissipate, and then put it in the soil.