ES-421 Digital Salinity Meter. Atago
Manufacturer: Atago U.S.A., Inc.
The digital salt-meter, ES-421 employs a funnel-shaped sensor section (conductivity) that measures the salt % of samples such as dilute solution of soy sauce, ketchup, mayonnaise, Worcester sauce, squeezed juice of pickles, etc. Requires a very small sample (1.0mL is enough for measurement).