Four speeds optional: select the speed according to the axis type to make the measurement more accurate, type 1: 2% to 40%; type 2: 2% to 50%; type 3: 2% to 60%; type 4: 2%~70%. Probe protective cover: made of natural rubber, not easy to fall off, easy to use. High sensitivity probe: designed with 2 high-precision 303 stainless steel probes, it can penetrate the test surface and has fast and accurate characteristics. The hold button freezes the reading and holds the data. High-definition backlight display: Support backlight display, it is easier to read the measured value in the dark environment of day and night, and the work efficiency is higher. The tester is lightweight and easy to carry. Wide range of applications: can be used for building materials, wood, water stains on walls, capers/dirt, etc. . It is an indispensable device to facilitate your work. Temperature compensation function: It has automatic temperature compensation function, which can reduce the error caused by too high or too high temperature. bass during the measurement. Number of pieces delivered: 1 battery not included lucky meet Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.