50 mm x 50mm magnetic square rubber sheet.
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An annular magnet with face poles. Internal dia 12.5 mm, External dia 30 mm, thickness 6.5 mm
Made of steel 12 mm diameter, in pairs, half red & half blue (for N & S), spray painted, with keepers.
Half red & half blue (for N & S ) spray painted, with keepers. Made of cobalt steel 10 mm diameter available in different sizes.
Deflection Magnetometer – Compass box fitted on polished wooden base made of non-wrapping wood with meter scale alongside its length. Compass box is removable
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