Electronic apparatus, comprised of gateway routers, monitors, controllers, and alarms, sold together as a unit and used for detecting and monitoring roof drainage for water levels, blockage, and temperature; Metal pipes, bends being metal pipe elbows and branches being metal branching pipes, all for water drainage; accessories for pipes, namely, drain traps and fastening anchors, all made of metal; metal roof drains; metal pipes, bends being metal pipe elbows, and branches being metal branching pipes, all for drainage, wastewater and sewage installations; all the aforementioned goods only for use in the area of drains, drainage channels and sewage pipes as well as connecting parts for these being metal pipe connectors; common metals and their alloys; metal materials for building and construction, namely, metal pipes and drains; metal pipes and fittings therefor; accessories for pipes made of metal, namely, bends being metal pipe elbows, branches being metal branching pipes, couplings, sockets, clamps, increasers, reducers, stops, pipe hangers, adaptors, flanges, plugs; drain pipes of metal; trench drains of metal; metal drainage pipes accessories made of metal, namely, covers, filters, grates, traps, plugs, inserts, and baskets, adapted for metal drainage pipes; metal gutters accessories made of metal, namely, leaf guards adapted for metal gutters; marine metal drainage pipes and parts and fittings therefor; metal roof gutters; leaf guards of metal for gutters; fire-proof drain traps of metal; metal drainage pipes for showers; metal gutter drains, pipes and traps; Plumbing supplies, namely, pipes and fittings, in the nature of pipes and drains being parts of sanitary installations; accessories for pipes, namely, sockets, and couplings being parts of sanitary installations; floor drains being parts of sanitary installations; trench drains being parts of sanitary installations; drain gutters and parts thereof, namely, grates, traps, outlets, sediment containers, gutter angle pieces, filter baskets, and structural and replacement parts thereof, all being parts of sanitary installations; sanitary installations being drainage, wastewater and sewage disposal and treatment plants composed of metal pipes, bends, and branches all being parts of sanitary installations; all the aforementioned goods for use in the area of drains, drainage channels and sewage pipes as well as connecting parts being pipe and drain fittings; floor drain accessories, namely, covers, filters, grates, traps, plugs, inserts, and baskets, adapted for and being parts of sanitary installations in the nature of floor drains; marine drains being floor drains and structural and replacement parts and fittings therefor