• Tests ethylene glycol strength and includes temperature adjustment scale for accurate interpretation of mixture strength.• Composite body and rubber bulb for workshop durability.Tests ethylene glycol strength and includes temperature adjustment scale for accurate interpretation of mixture strength. Composite body and rubber bulb for workshop durability.• Tests ethylene glycol strength with engine hot or cold. • Composite body and rubber bulb for workshop durability. • Model No. AK409Technical Specification:Nett Weight: 0.07kgDimensions: Length: 42mm x Height: 259mmWeight: 0.11KgWarranty: 1 year