MWF MF 1200 Active Long Range DetectorMWF MF 1200 Active Long Range Detector Depth: 40 meters for all targets and 450 meters for water Distance: 2000 square meters MF 1200 Active With 3 detection systems, Multi functional and multi system This device is a developer of the device MF 1200 Active, which has been updated and developed entirely ,has been developed transceiver systems, and equipped with more than a long distance sensing system to search and detection of targets underground.