10 0 VIZ MARK II CARBON HYGRISTOR 21 1 VIZ B2 HYGRISTOR 32 2 VAISALA A-HUMICAP 43 3 VAISALA H-HUMICAP 54 4 CAPACITANCE SENSOR 65 5 VAISALA RS90 76 6 SIPPICAN MARK IIA CARBON HYGRISTOR 87 7 TWIN ALTERNATIVELY HEATED HUMICAP CAPACITANCE SENSOR 98 8 HUMICAP CAPACITANCE SENSOR WITH ACTIVE DE-ICING METHOD 109 9 CARBON HYGRISTOR 1110 10 PSYCHROMETER 1211 11 CAPACITIVE (POLYMER) 1312 12 CAPACITIVE (CERAMIC, INCLUDING METAL OXIDE) 1413 13 RESISTIVE (GENERIC) 1514 14 RESISTIVE (SALT POLYMER) 1615 15 RESISTIVE (CONDUCTIVE POLYMER) 1716 16 THERMAL CONDUCTIVITY 1817 17 GRAVIMETRIC 1918 18 PAPER-METAL COIL 2019 19 ORDINARY HUMAN HAIR 2120 20 ROLLED HAIR (TORSION) 2221 21 GOLDBEATER'S SKIN 2322 22 CHILLED MIRROR HYGROMETER 2423 23 DEW CELL 2524 24 OPTICAL ABSORPTION SENSOR 2631 31 MISSING VALUE 27