Internet of things (IoT) sensors for measuring air quality, carbon Monoxide (CO) and carbon dioxide (CO2) concentration, volatile organic compound (VOC) concentration, light, temperature, humidity, pressure, radiation, noise, and pressure not for medical use; internet of things (IoT) gateways routers; internet of things (IoT) range extenders, namely, antennas; computer hardware modules for use with the internet of things (IoT); downloadable computer application software for use in implementin...