NOVELTY - Monitoring system (10) has sensors (70) mounted at set position along support line e.g. communication line (74) between first end (60) and second end (62). Each sensor includes sensor body having electrical connector to join sensor to support line at set position along string axis (64) and electrical structure having sensing device that monitors the characteristic of associated material near set position and electronic identification code corresponding to set position of sensor along string axis. Transmitting device selectively communicates characteristic and identification code from sensor.    USE - Monitoring system for measuring one or more characteristics of pile during and/or after pouring process of formed solid object. Can also be used for energy pile system in which flow paths in poured pile are used to heat and/or cool the building structure, measuring energy of or in pile and determining if pile has reached its limits in geothermal energy transfer.    ADVANTAGE - Provides monitoring system that is inexpensive to produce and allows for significant amount of temperature sensors to be positioned within the pile cavity. Ensures accurate fixing of sensors at set positions in which temperature reading for each sensor is accurately associated with the particular location within the pile and to help produce 3D temperature matrix. Allows positioning of large number of sensors in the array within pile cavity by utilizing inexpensive sensors attached to the hanging wire. Human error is minimized since sensors are fixed at a given location. Obtains greater accuracy since temperature sensors of sensor are in direct contact with the concrete. Accurate representation of temperature changes and/or current temperatures of the entire pile are calculated if string is positioned accurately within the pile cavity. Work crews are dispatched more efficiently based on real time information produced from the system by including the monitoring arrangements. Allows use information to help the heating and cooling system run more efficiently and to determine points in which secondary cooling and/or heating methods are needed to supplement the energy harvested from the pile.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of measuring at least one condition of a poured structure.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a drilled pipe which includes a sensing device.    Monitoring system (10)    First end (60)    Second end (62)    String axis (64)    Sensors (70)    Communication line (74)