This unique design gives a direct reading of wind speed, without the need to count revolutions. The low and high calibrations register ms -1 and the Beaufort scale. Clever indication on handle May be hand-held or permanently fixed Complete…View more
This unique design gives a direct reading of wind speed, without the need to count revolutions. The low and high calibrations register ms -1 and the Beaufort scale. Clever indication on handle May be hand-held or permanently fixed Complete with product guide. Size 28 x 19cm