Portable 4-in-1 RTGPT antifreeze coolant refractometer, ideal for testing automotive antifreeze systems, battery acid and windshield washer fluid.

Product Description Glycol antifreeze freezing point: -50~0℃, division value of 1℃ Propylene glycol antifreeze freezing point: -50~0℃, division value of 1℃ Electrolyte density: 1.10-1.40, index value 0.01. (1.15~1.20 requires charging; 1.20~1.25 sufficient power; 1.25~1.30 sufficient power) Freezing point of windshield washer fluid -40 to +0°C, division value 5°C. Contains: 1 * Refractometer, 1 * Screwdriver, 1 * Manual, 1 * Cleaning Cloth. 1. (USE): With this refractometer, you can determine the concentration of ethylene glycol and propylene glycol in your car's antifreeze, solar system, heat pumps, the freezing point of windshield washer fluid, heating system, or other machines or systems. 2. (MEASUREMENT RANGE): Ethanediol (Ethylene Glycol): -500°C to 0°C; Propanediol (Propylene Glycol): -500°C to 0°C; Water-cooled windshield - Ethanol + Water: -40°C to 0°C, Propylene glycol + Water (SRF1): -40°C to 0°C. Urea concentration 30% - 35%, Battery acid 1.10 to 1.40 kg/L. 3. TEMPERATURE COMPENSATION DEVICE: Temperature compensation device included to ensure easy and convenient measurement for PRECISE MEASUREMENT: Adjust the optical system of the eyepiece group: 4x to 8x magnification system, continuously variable manual focus. Suitable for all eyes. 4. HIGH QUALITY: Our chrome-plated brass body is resistant to chemical corrosion and wear, extending the refractometer's lifespan compared to other aluminum housings.