The James Instruments Aquameter utilizes the latest electronic technology to measure the quantity of water within its sensing field. The unit has two modes of operation: pin mode and search mode. In pin mode, two pins are pushed into the material and a high frequency field is created between these two pins. In search mode, the unit uses a high frequency capacitive sensor to sample a large volume of the material, instantaneously. The Aquameter allows the user direct readout of moisture content for concrete, masonry, hard wood, soft wood, gypsum, and brick.