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By certification 
Model:HT414ATC Battery/Antifreeze/Cleaning Fluid refractometer
Mesurement range:Ethylene Glycol -50~0 centigrade
Propylene Glycol -50~0 centigrade
-40oC to 0oC screen cleaner scale
B 1.1~1.4kg/L(sg)
Minimum Division:1 centigrade
5 centigrade
0.01kg/L
size:(mm):30 X 40 X 160
weight(g):205
Automatic Temperature Compensation:0-30 centigrade
Mesurement range:Ethylene Glycol -50~0 centigrade
Propylene Glycol -50~0 centigrade
-40oC to 0oC screen cleaner scale
B 1.1~1.4kg/L(sg)
Minimum Division:1 centigrade
5 centigrade
0.01kg/L
size:(mm):30 X 40 X 160
weight(g):205
Automatic Temperature Compensation:0-30 centigrade
