NJW199-Battery Coolant Checker with ISO Certificate

• It is essential to know the concentration and freezing point of anti-freeze coolants for vehicular safety -- Keeping a suitable concentration of coolant prevents engine trouble and possible radiator corrosion
• This tester monitors the freezing point of both ethylene glycol and propylene glycol; in addition, it indicates battery recharge level. This tester is simple to use; requiring only a few drops to provide accurate readings within seconds

Additional Specifications

• Temperature Range (Propylene Glycol ): -58°F - 32°F (-50°C - 0°C )
• Resolution: 33°F ( 1°C )