Specifically designed to test the concentration of automotive urea (AdBlue/DEF), helping you to quickly diagnose the status of your vehicle's urea system and that the emission system is working properly It can accurately test the ethylene glycol and propylene glycol components in the refrigerant to help determine the cooling and antifreeze performance of the refrigerant and effectively prevent the engine from overheating or icing clear digital display allows you to read the measurement results quickly and conveniently. Easy to use even at night Compact and , suitable for carrying along with the vehicle, and the rugged and housing ensures that the instrument can work normally under all kinds of harsh conditions Suitable for all kinds of vehicles, including trucks, and buses, it is an ideal tool for vehicle owners, technicians and managers Colour:As Shown Material:Metal Package Contents: 1 * antifreeze tester set Only the above package content, other products are not included. Note: Light reflection 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.