Antifreeze Refractometer

Antifreeze Refractometer
It's designed for testing for concentration of the battery fluids, antifreeze liquid and cleaning fluids. With the indication of the percentage you may know at which temperature the fluid will be frozen for both propylene glycol and ethylene glycol. It can also be used for checking the strength of electrolyte solution batteries. ATC means "Automatic Temperature Compensation". 

Specifications:  

Antifreeze/Battery/Cleaning Fluids/Density Refractometer
Model	Measurement Range	Min. Div.	Accuracy	Marks
RHA-200ATC	E:-50°C-0°C P:-50°C-0°C B:1.100-1.400sg	1°C 1°C 0.01sg	±1°C ±1°C ±0.01sg	ATC
RHA-201ATC	E:-60°C-0°C (0-66.6%) P:-50°C-0°C (0-62.4%) B:1.100-1.400sg	5°C 5°C 0.01sg	5°C 5°C 0.01sg	ATC
RHA-300ATC	E:-60°F-32°F P:-50°F-32°F B:1.15-1.30sg	10°F 10°F 0.01sg	±10°F ±10°F ±0.01sg	ATC
RHA-301ATC	E:-60°F-32°F                          E:-50°C-0°C P:-60°F-32°F                        P:-50°C-0°C B:1.10-1.40sg	10°F          5°C 10°F       5°C         0.01sg	±10°F          ±5°C ±10°F       ±5°C         ±0.01sg	ATC
RHA-400ATC	E:-50°C~0°C P:-50°C~0°C                          N:1.396～1.333ND B:1.100-1.400sg	1°C 1°C          0.001ND 0.01sg	±1°C ±1°C          ±0.001ND ±0.01sg	ATC
RHA-503ATC	E:-50°C-0°C P:-50°C-0°C C:-40°C-0°C B:1.100-1.400sg	1°C 1°C 5°C             0.01sg	±1°C ±1°C ±5°C               ±0.01sg	ATC
RHA-600ATC	D:0～100% Density E:-60°C-0°C B:1.100-1.400sg	5% 5°C           0.01sg	±5% ±5°C           ±0.01sg	ATC
RHA-701ATC  Methanol Refracometer  RHA-701ATC   甲醇	Portable auto refractometer Methanol Antifreeze Tester -50℃~0℃ Methanol Freezing Point meter Water freezing point tester	5℃	±5℃	ATC