SIMPLE POWERFUL AFFORDABLE MAG 8 HDD LOCATOR PERFORMING WHERE OTHERS CAN'T ๏ Sonde Range: 130 feet to 360 feet ๏ Battery Life: 30 - 120 Hours ๏ Frequency: 12 Frequencies 4kHz ~ 41kHz " ๏ Single Ball Technology With this system in place, the bore shot was completed with no issues on the first attempt. Our crews at Eris Underground are believers in the Underground Magnetics system and recommend it wholeheartedly. " Chris Allen, General Manager Eris Underground LLC Demo a system win a Harley 515-505-0960http://umaghdd.com