Profile: Agricultural Electronics Corp. specializes in monitoring and communication equipment. Our product line includes PHYTOGRAM™, manual band, automatic point & band, and automatic root dendrometers. Our PHYTOGRAM™ is an electrochemical monitoring capability designed to assess inside-the-plant hydration (extracellular water content), changes in proton or hydrogen peroxide concentration, the level of metabolic activity of the plants, and their response to natural and artificial environmental influences. The PHYTOGRAM™ consists of a sensor and equipment to apply electrochemical testing procedures to the sensor circuit. The sensor is a thin rod (about three times the size of a human hair, and made of precious metal) inserted inside the plant, seedling, or tree. It is implanted in the extracellular region of the tissues in a non destructive manner, and as such provides an indication of the normal transfer of constituents into and out of cells adjacent to its surface. The automatic root dendrometer can measure changes in the outer surface of a root with respect to the fixed inner root xylem. Root radial surface changes can be measured up to thirteen centimeters below ground level to a resolution of five micrometers. The range of the dendrometer is thirteen millimeters.