|            MODEL           | SPECIFICATION | 
| HR-130 | 
Hand refractometer, 0-32% ATCMeasuring range: 0-32% BrixResolution: 0.2% BrixWith ATCCompensation temperature range: 10°C-30°C | 
| HR-170 | 
Hand refractometer, for battery, antifreezeMeasuring range: Ethylene Glycol -60°C (66.6%)-0°C (0%), Propylene Glycol,        -50°C(62.4%)-0°C (0%),
Battery 1.100-1.400sgResolution: Ethylene Glycol 5°C, Propylene Glycol 5°C, Battery 0.01sgWithout ATC  | 
| HR-180 | 
Hand refractometer for wine and grapeMeasuring range: Alcoholº 0-25% - Resolution: Alcoholº 0.2%Without ATC  | 
| HR-190 | 
Hand refractometer, 0-28%, for salinityMeasuring range: Salinity: 0-28%Resolution: Salinity: 0.2%With ATCCompensation temperature range: 10°C-30°C |