See water Hydrometers

We have paid particular attention to the quality of the scales, as well as to the ease with which they can be read.
Critical zones are coloured, and as large as possible, with clear and distinct subdivisions, combining to give a user friendly instrument.
Certain models are available in blister packaging, to enable the products to be sold in self-service outlets.
Calibration temperature: 25°C
Surface tension for sea water: 74mN/m
Reading under meniscus.