DIY gradiometer kit - makes it easy to build a must-have tool for treasure hunters arsenal that can detect ferromagnetic objects and voids that are located several meters deep and also supports smartphone connectivity. Free Android App makes it easy to observe and analyze DIY gradiometer signals.

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NEW! Firmware update V1.3

the changes are - lower consumption. WiFi version 200mA, without wifi only 100mA

Offical Firmware v1.3 (BIN)

Firmware v1.3 for developers
(no Android support)