The James Instruments products that make up this category determines moisture content of construction materials. This is a critical factor in determining quality of final construction.

The Trident utilizes the latest microwave and microprocessor technologies to measure moisture content in various fine and coarse-grained sand and aggregates. The prongs of the probe are inserted into the material to be tested and the percentage of moisture content is instantaneously shown on the easy-to-read display.

The Aquaprobe is an advanced digital instrument, using a high frequency capacitive sensor to accurately measure the water content of concrete, masonry, brick, gypsum, and most solid materials.