4 in 1 Car Refractometer Antifreeze Coolant Tester Engine Fluid Propylene Ethylene Glycol Detector Car Clean Battery Test Tool

Good luck with your favorite purchases4 in 1 Car Refractometer Antifreeze Coolant Tester Engine Fluid Propylene Ethylene Glycol Detector Car Clean Battery Test ToolName: Vehicle Adblue Tester Measuring range: Auto Urea 30 to 35% Ethylene glycol EG: -50 ° C to 0 ° C Glycerol PG: -50 ° C to 0 ° C Glass water CW: -40 ° ~ 0 ° Battery liquid BF: 1.10 ~ 1.40KG / L With automatic temperature compensation 0 ~ 30 ° Resolution: Automotive urea concentration 0.2% Antifreeze freezing point 5 ° Glass water freezing point 5 ° The specific gravity of the battery is 0.01 Right scale: glass cleaning solution freezing point Precautions 1. Do not place it in the ring mirror with relative humidity over 85% for a long time, so as not to affect the optical system. 2. Don't let liquid and water enter the adjusting knob and eyepiece to avoid damaging internal components. 3. Don't jump and collide, so as not to damage the accuracy of the instrument. 4. Wipe the prism and refraction plate with a clean cloth immediately after use.