You made a very good choice.
Minelab has only been around since 1985 but, our machines are definitely ahead of most competitors.
History

Minelab excels in providing leading technologies for the metal detection industry world-wide. We are confident that our culture of innovation and commitment to quality will ensure Minelab continues to succeed in providing the world’s best metal detection technologies for consumer, humanitarian and military needs.
1985 - 1989 EARLY BEGINNINGS
Goldseeker 15000 launched - Minelab's first metal detector (1985)
GT 16000 launched - world’s first truly automatic ground-tracking metal detector (1987)
Eureka Dual Ace launched – world’s first two frequency detector? (1989)
1990 - 1994 A GROWING BUSINESS
Sovereign Series launched (1991)
Excalibur Series launched - Minelab's first underwater metal detector (1993)
Headquarters moved to Rose Park, South Australia (1994)
1995 - 1999 GOING GLOBAL
SD Series detectors launched (1995)
Australia Post, Australia Day Council Business Award (1996)
Headquarters moved to Torrensville, South Australia (1997)
Countermine division created (1997)
F1A4 mine detectors launched (1997)
Certificate ISO 9001 (1997)
Minelab International established in Ireland (1998)
Minelab USA established in the U.S. (1998)
AusIndustry Innovation Prize (1998)
National Winner IBM Business Owner Award (1998)
Telstra and Australian Governments' Australian Small Business of the Year Award (1998)
Explorer Series launched (1999)
2000 - 2004 ONWARDS AND UPWARDS
Electronics Industry Association "Gold Cup for Excellence in Innovation & Commercialisation" (2000)
City of West Torrens Business Award for outstanding contribution towards the Economic Development of the City of West Torrens (2000)
Design Institute of Australia - Design Citation for Explorer Metal Detector (2000)
GP Series launched (2000)
Finalist - SA CIMB Innovation Award category - innovator of the year (2002)
Recognised Supplier for Australian Department of Defence (2002)
F3 mine detectors launched (2002)
Array mine detectors developed (2002)
Torrensville site extensions completed (2003)
2005 - 2009 BIG CHANGES
Acquisition of Parketronics (2005)
AusIndustry Award in recognition of commitment to business excellence and in particular for innovation in the development of metal sensing technology (2005)
X-TERRA Series launched (2005)
AusIndustry Award in recognition of commitment to business excellence and in particular the company's ongoing commitment to business and technical excellence in the invention, development, manufacture, marketing and distribution of innovative metal detection technology (2006)
GPX Series launched (2006)
Recognised Supplier of Strategic Capabilities for Australian Department of Defence (2007)
L-3 Communications CyTerra Corp and United States Army in recognition of 5000th AN/PSS14 Mine Detecting Set (2007)
Codan acquires Minelab (2008)
Winner - Engineering Excellence Award for SETA technology used in GPX-4500 (2008)
Finalist - Engineering Excellence Award for Array metal detector development (2009)
2010 - PRESENT TOWARDS A PROMISING FUTURE
Manufacturing expansion with selected production contracted to Plexus, Inc. (2010)
Hugh Graham (General Manager, Countermine) awarded "Gold Medal for National COnstruction Grand Cross" (2010)
US office expansion (2010)
******Minelab Explorer SE Metal Detector
The Explorer SE is the third generation in the Explorer line and will surpass anything you've seen for depth sensitivity and superior target discrimination. This unit also takes advantage of Minelab's FBS technology, which means the signal received from the detector coil is analyzed by a wide range of responses. That allows the target identification to be more accurate. Ground balancing is automatic with advanced digital filtering to find what you're looking for in all types of soil ? from dry clay to wet, black sand or rich loam. Iron Mask with full ferrous discrimination capability. Quickstart setting nearly eliminates the learning curve. Now get out there and dig some treasure!