Tests ethylene glycol strength and includes temperature adjustment scale for accurate interpretation of mixture strength. Composite body and rubber bulb for workshop durability.

Checks condition of coolant antifreeze, hot or cold. Freeze protection level is indicated by the number of the six large coloured discs which float in the sample. Easy-to-read temperature table on the virtually unbreakable plastic body.

Tests modern propylene glycol coolant antifreeze, hot or cold. Protection level is indicated by the number of the five large coloured discs which float in the sample. Easy-to-read temperature table on the virtually unbreakable plastic body.

Convenient, pocket-sized tester for ethylene glycol antifreeze mixtures. Freeze protection level is indicated by the number of coloured balls which float in the sample. Easy-to-read temperature table on the body.

Tests ethylene glycol strength in radiator or header tank. Tube construction with thermometer for temperature calibration.

Accurately measures the strength of battery fluid, screenwash and antifreeze by measuring the refractive index of light passing through the mixture. Suitable for synthetic antifreeze mixtures including long-life OAT (Organic Acid Technology) and G13. Temperature corrected prism ensures accuracy. Eyepiece with adjustable focus. Supplied with pipette and storage case.

Accurately measures the strength of battery fluid, screenwash, antifreeze and AdBlue® by measuring the refractive index of light passing through the mixture. Suitable for synthetic antifreeze mixtures including long-life OAT (Organic Acid Technology), G13 and aqueous/urea content of AdBlue®. Temperature corrected prism ensures accuracy. Eyepiece with adjustable focus. Simple calibration check using distilled water. Supplied with pipette and storage case.

Tests ethylene glycol antifreeze mixtures. Features a temperature compensation rotor that automatically adjusts the reading regardless of the coolant temperature. Freeze protection level is indicated on the scale in degrees Celsius.

Tests propylene glycol antifreeze mixtures. Features a temperature compensation rotor that automatically adjusts the reading regardless of the coolant temperature. Freeze protection level is indicated on the scale in degrees Celsius.