Feature:-100% Brand New High Quality-Made of High Quality Materials, Durable Steps:-Open the lid and clean the mirror carefully.-Take a small amount of liquid to test on the mirror and close the lid. (please avoid the formation of air bubbles), let the liquid spread over the mirror surface and plate together.-Aim at the light source or bright spot, the eye can see the result inside the mirror, and the eyepiece can be rotated to adjust the knob.-Please make the blue and white boundaries of the field of view clear, and the value of the parting line scale is the concentration of the liquid.-The ATC system automatically adjusts to the appropriate temperature during operation.-Check the urea content quickly and accurately Adblue.Product Parameters:-Name: Urea Tester for Vehicle-Accurately measure the density of the battery fluid (1.100 - 1.400sg)-Measure the degree of freezing resistance of the coolant (-50 - 0 C)-Measure the degree of antifreeze (-40 -10 C)-Determination of the urea concentration in the solution (30% - 35%)Measuring range-Adblue: 30% - 35%.-Ethylene glycol: -50 - 0 c-Propylene glycol: -50 - 0 c-Cleaner: -40 - -10 c-Battery fluid: 1.100 - 1.400sg. Precision-Adblue: 0.5%-Glycol: 5c-Propylene Glycol: 5c-Cleaning Agent: 5c-Sg-Battery Fluid: 0.02At Least-Adblue: 0.5%-Glycol: 5c-Propylene Glycol: 5c-Cleaning Agent: 5cG-battery fluid: 0.01-Temperature compensation range (ATC): 10 - 30c (50 - 86f)-Battery fluid BF: 1.10 - 1.40KG/L-Not suitable for methanol antifreeze freezing point and methanol glass water freezing point testingPacking List:1 * Automatic Urea Tester1* screwdriver set1 * with dropper1 * regional aid guidelines1 * description1 * storage boxNotes:1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the picture on website.2. Please allow slight deviation between the data and manual measurement.