Features and Benefits:
- Large professional-size (16 1/4") tester is accurate at all temperatures
- Tests coolant, hot or cold
- Easy to read discs are magnified by convex design of the clear SAN plastic barrel
- Protection scale is printed in both Celsius and Fahrenheit
- Beyond 70% anti-freeze, cooling and corrosion effectiveness is reduced
- One-piece bulb and neoprene dip tub