FGM sensors Sale! GRADIOMETER KIT €250.00 €219.00 Ιncludes FGM 3 PRO Magnetic field sensors pair with matched electronic properties plus the Gradiometer pcb with LCD 199 Euro (delivery charges by post included) Sale! Enclosure for Magnetometer Kit with LCD window cutout, battery compartment and belt clip €50.00 €39.00 Sale! FGM 3 PRO Magnetic Field Sensor €75.00 €66.00 Sale! FGM 3 PRO Magnetic field sensors pair with matched electronic properties €150.00 €132.00 Sale! GRADIOMETER KIT €250.00 €219.00