0 + 30 °C in 1/2 °C length ±365 mm division 0,000.5 g/cm3 standard 20 °C verifiable Set of 28 hydrometer with thermometer 0 + 30 °C in 2 velvet lined case 0255
length +335 mm division 0,000.5 g/cm3 standard 20 °C suitable for official testing Set of 28 hydrometer without thermometer in 2 velvet lined case 0226 S