NOVELTY - Composting apparatus comprises reactor vessel tilted such that material within reactor vessel does not exit the opening in load/unload end of reactor vessel; sensor wand (16) positioned within reactor vessel adjacent to closed end, where sensor wand comprises elongated body (18) having upper end (20) positioned above opposed lower end (22) and central axis (24), gas inlets (58) positioned along the body for collecting gas samples; and temperature sensors (60) positioned along body for measuring temperatures.    USE - As composting apparatus (claimed), used to provide nutrients for plants and to improve soil structure.    ADVANTAGE - The composting apparatus includes a sensor wand positioned in the reactor vessel for obtaining gas sample and temperature information within the reactor vessel, and a control unit for controlling the composting process dependent upon the gas sample and temperature information.    DETAILED DESCRIPTION - A composting apparatus comprises reactor vessel having closed end and load/unload end opposite the closed end, where load/unload end has opening for loading material into and from the reactor vessel, where the reactor vessel is tilted such that material within the reactor vessel does not exit the opening in load/unload end of the reactor vessel; a sensor wand (16) positioned within reactor vessel adjacent closed end, where the sensor wand comprises an elongated body (18) having an upper end (20) positioned above an opposed lower end (22) and a central axis (24), where the upper end is positioned on one side of central axis and the lower end is positioned on an opposite side of the central axis; gas inlets (58) positioned along the body for collecting gas samples; and temperature sensors (60) positioned along the body for measuring temperatures, where the upper end of the sensor wand curves toward the closed end of reactor vessel, where the lower end of the reactor vessel curves away from the closed end of the reactor vessel, where the body of the sensor wand comprises a central portion, two end portions (54A, 54B), and two intermediate portions (56A, 56B) between the central portion and the end portions, and where distances between gas inlets and temperature sensors in central portion and end portions are less than distances between gas inlets and temperature sensors in intermediate portions.    DESCRIPTION OF DRAWING(S) - The figure shows a side elevational view of sensor wand.    Sensor wand (16)    Elongated body (18)    Upper end of elongated body (20)    Lower end of elongated body (22)    Central axis (24)    Gas inlets (58)    End portions of sensor wand (54A, 54B)    Intermediate portions of sensor wand (56A, 56B)    Temperature sensors (60)