Nails; Door bells of metal, non-electric; Doors and windows of metal; Fittings of metal for furniture; Flagpoles being structures of metal; General purpose metal storage bins; General purpose metal storage containers; Holiday ornaments of common metal; Labels of metal; Metal clothes hooks; Metal locksets; Metal rails; Metal safes; Metal storage tanks; Rivets, cramps and nails of metal; Statues of non-precious metal of Buddha; Works of art of common metal

A mesh network of temperature probes which measures the internal temperatures of compost piles and wirelessly transmits the temperature data to a computer