I have designed small metal detector probes for 6 years, and recently I found some treasure hunter has confuse the waterproof an underwater metal detectors.
When they bought waterproof pinpionter and put the top detecting probe into the water, who will happy to say YES the probe can underwater but accturally is just 2-3 inch deepth.
Underwater seal technology is the most important than other onland underground detectors, when depth over 3 meters, the entire structure radical changes.
External push-button switch, must be able to withstand water pressure, so the switch will not be pressed by water.
When more than depth of 8 meters, Any connection parts will be water leakage.
Therefore, as a complex, multi-functional underwater detectors,
How to design, component location, and design accuracy of detection range, and prices policy
Is a comprehensive solution.... and now the real underwater metal probe enter into the metal detecting market
Please read following top pinpointer metal probes in the world
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http://www.thunting.com/smf/index.php/topic,27823.msg197320.html#msg197320
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« Last Edit: October 07, 2011, 08:51:01 am by MDdetector »
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