Handheld Glycol Refractometer Car Antifreeze Battery Acid Engine Coolant Tester
It can also be used to check the health of electrolyte solution batteries. 1 Pcs Pipette. And they can also be used to test the concentration of ethylene glycol or propylene glycol in antifreeze. Antifreeze Freezing Point ~50~0℃ 1℃ ±0.5℃.