4-in-1 Antifreeze Refractometer Test Ethylene/Propylene Glycol, DEF, Battery Acid, Windshield Washer Fluid for Automotive & Industrial Use

4-in-1 Antifreeze Refractometer Test Ethylene/Propylene Glycol, DEF, Battery Acid, Windshield Washer Fluid for Automotive & Industrial Use

• Antifreeze freezing point: Measures ethylene glycol or propylene glycol. (-50°C to 0°C) for cold-weather protection.
• Battery acid SG: Tests specific gravity (1.10–1.40 kg/l) to indicate charge status.
• Washer fluid freeze point: Measures -40°C to 0°C (ethanol/IPA based) with SRFI scale.
• DEF concentration: Measures urea (30%–35%) for emissions system efficiency.
• Automatic Temperature Compensation (ATC): Delivers accurate readings regardless of ambient temperature changes.
• Easy to use & portable: No batteries required – just 2–3 drops on prism, read results in seconds.