Underground Magnetics Mag 3s HDD Locator

If you don’t need all the bells and whistles, the Mag 3s sets the standard for affordable locators. Still offering all the basic functions of the more expensive systems, the Mag 3s comes standard with the Echo 50 transmitter. Offering 12 frequencies and two power levels, this system will get you through most interference at a cost no other locator can offer.

Weight 6.5 lbs
Dimensions 27 x 5 x 12 in
System Frequency

12 Frequencies, 4kHz - 41kHz

Water Resistance



4 Radio Channels with range up to 1800 ft. (500m)

Rechargeable Lithium Battery Pack


Battery Life

Up to 50 hours

Compatible Transmitters

Echo X-Mini / Echo 50

Universal HDD believes the specifications on this web ste to be correct at the time of publishing. However, specifications, standard equipment, options and dimensions are subject to change without notice. Some equipment may be unavailable when your machine is built. Please ask your adviser for list concerning current availability of standard and optional equipment and tooling, and verify that your machine will include the equipment you ordered. Machines in this brochure are shown with optional equipment. While Universal HDD makes diligent efforts to provide accurate information in this brochure, there is no guarantee or warranty of accuracy. This brochure shall not be used or relied upon as substitute for information that is available from your Universal HDD center. Further information can be obtained from your authorized Universal HDD dealer or www.unihdd.com.