Ref201-Ref213 Portable Handheld Salinity Refractometer

REF201/211 0 to 0-100‰ SalinityIt can be used to measure the low concentration of salt in sea water and prepared food solution and check salt content.Scale range: 0 to 100‰Minimum scale: 1‰Accuracy: ± 1‰Model REF 211 has a built -in automatic temperature compensation system. Compensation temperature range 10ºC to 30ºC.REF202/212 0 to 0-28% SalinityThe model is basic refractometer for the measurement of salt in sea water and prepared food solution.Scale range: 0 to 28%Minimum scale: 0.2%Accuracy: ± 0.2%Model REF 212 has a built -in automatic temperature compensation system. Compensation temperature range 10ºC to 30ºC.REF203/213 0 to 0-10% SalinityThe model is basic refractometer for the measurement of salt in sea water and prepared food solution.Scale range: 0 to 10%Minimum scale: 0.25%Accuracy: ± 0.2%Model REF 213 has a built -in automatic temperature compensation system. Compensation temperature range 10ºC to 30ºC.