Fangrui Product Details Radiator Coolant Water Tester Test Ethyl Glycol Check Measure Features: The Coolant Tester Is A To Use Device That Helps You To Check Your Radiator Coolant This Coolant Tester Quickly Checks The Specific Gravity Of Your Engine Coolant Water And Shows You Whether You Have Enough- (ethylene Glycol) Or Inhibitor In Your System. Your Engines System Is A Vital Part Of Your Engine. Without Water, Your Engine Will Quickly Overheat And Seize. This Is A Common Cause Of Blown Gaskets. Today's Aluminium Cylinder Heads And Engine Blocks Have The Added Problem Of The Water In Your System Can Corrode The Aluminium And Cause Severe Damage To Your Engine. Coolant Additives As Well As Your Coolant From Freezing And Cracking The Block. Material: Abs Package Size: 23cm X 15cm X 5cm (9.06in X 5.91in X 1.97in) Weight:78g Color:as Shown Note: Light Shooting And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm. The Coolant Tester You: Check The % Of The Special Coolant Additives In Your Water. Check That Your System Will Not In Winter. Check To Make Sure Your Coolant Is Not Corroding Your Engine. Your Coolant Also Lubricates The Water Pump. Great Tuning Aid For The Mechanic Or The Diy Mechanic At Home. Package Content: 1 X Water Tester Test