You can send the repairs to our address at

Electronic Exploration
575 West Harrison Rd.
Lombard IL 60148

Include a note with the problem your having with your unit. Include the unit and loop be sure you include your Name Address and Phone number. We will contact you with the  repair cost at which time you can either pay by credit card or select to pay on our web site at our parts link on our main page.

If your unit is within warranty include $13.00 for s/h/i. You should also include a copy of your sales slip.