Probe protection cover: made of natural rubber, not easy to fall off and easy to operate. With hold function: The hold button freezes the reading and keeps the data. Wide range of applications: can be used for building materials, wood, water damage of walls, caper loor, etc. This is a must-have device to make your work easier. High sensitivity probe: designed with 2 high precision 303 stainless steel probes, which can penetrate the test surface and have fast and accurate characteristics. HD backlight display: support backlight display, easy to read the measurement value in both daytime and nighttime dark environment, work more efficiently., Manufacturer: CFWWSAQ