Using high strength 303 stainless steel, high frequency sampling rate of five times per second.This meter tester is for ideal to use in woodworking, building construction, agriculture restoration Measuring wood by sensitive electrode pins at the range of 0 and accuracy is ±5 It also has the capability to measure the temperature and humidity of the site environment Finding the content in your wood or building is the first step in early Large LCD with auto calibration, Auto power off to save battery power, Manufacturer: TFAOYS