Ionic Sensor Device crypton obmd-3 For gold and treasures Search for its name on YouTube and see its explanation, information, and how to use it. Price: 7500 SAR It needs calibration to return it to its original settings. The device is currently unavailable. Its price is around 5000 Euros. I give you a 6-month warranty if you don't benefit from it, it's returnable. Shipping is available. Price: 7,500