REF301/311 Protein
These model are developed for quick determination of protein in serum and urine specific gravity.
Scale range: 0-12g/dl
1.000 to 1.040sg
Minimum scale: 0.2g/dl
0.002sg
Model REF 311 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° C.

REF302/312 Protein
This model has three scales, Scale one is protein in serum, Scale two is urine specific gravity, Scale three is refractive index.
Scale range: 0-12g/dl
1.000 to 1.050sg
1.3330 to 1.3600RI
Minimum scale: 0.2g/dl
0.002sg
0.0005RI.
Model REF312 has a built-in automatic temperature compensation system. Compensation temperature range 10° Cto 30° C

REF303/313 Protein
This model has three scales, Scale one is protein in serum, Scale two is urine specific gravity, Scale three is refractive index.
Scale range: 0-12g/1000m
1.000 to 1.050sg
1.3325-1.3600ND
Minimum scale: 0.2g/dl
0.005UG
0.0005ND.
Model REF313 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° C

REF304/314 Protein
This model has three scales, Scale one is protein in serum, Scale two is urine specific gravity, Scale three is refractive index.
Scale range: 0-12g/1000m
1.000 to 1.040sg
1.3330-1.3600ND
Minimum scale: 0.2g/dl
0.005UG
0.0005ND.
Model REF314 has a built-in automatic temperature compensation system. Compensation temperature range 10° C to 30° C.