Brand New and High Quality Features: The instrument can effectively detect the concentration, and the urea content directly affects the catalytic efficiency for NOx and the freezing point of the urea solution. The use of catalytic reduction of urea solution is an effective means to control the exhaust emissions of vehicles. The instrument can quickly detect the concentration of vehicle urea solution and quickly identify tools for the convenience of some products. Specification: Type: Freezing Point Material: Metal, Plastic Applications: Automobile, industrial, repairing Features: Reliable, Accurate, Small size, Light weight, Beautiful appearance, Easy to operate, Auto parts Dimension: approx. 15.8 cm / 6.22 in Color: Black Quantity: 1 Pc Note: 1. Do not allow liquid and water into adjustment knobs and eyepieces to avoid damaging internal components. 2. Immediately after use, wipe the prism and refracting plate with a clean cloth. 3. Please allow 0-1 cm error due to manual measurement. 4. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1 Pc Freezing Point