A mesh network of temperature probes which measures the internal temperatures of compost piles and wirelessly transmits the temperature data to a computer; accumulators; accumulators and batteries; acidimeters for batteries; air filters for automation equipment, namely, computers; anode batteries; arm rests for use with computers; backpacks especially adapted for holding laptops and notebook computers; batteries; batteries and battery chargers; batteries and battery chargers for intravenous fluid delivery apparatus; batteries for lighting; batteries for pocketlamps; batteries for use in hearing aids; battery cases; beeper carrying cases; carrying cases and containers for contact lenses; cleaning discs for cleaning the lens of optical disc drives used in computers and digital video recorders