SPECTRA EMERALD

Description

Computer networked sound masking, music, paging and environmental metering equipment, namely, speakers, control units for adjusting volume and contour levels of sound and for selecting audio input devices and monitoring environment for smoke, CO2, air quality, temperature and occupancy, interfacing devices for computer networked sound masking, music, paging and environmental metering equipment, namely, routers and hubs, power supplies, controllers, relays, analog to digital converters, digital multiplexing devices, digital control devices, IR devices, fire detectors, smoke detectors, CO2 detectors, air quality monitors, gas detectors, temperature sensors, humidity sensors and environmental and occupancy sensors, namely, electronic devices which detect the presence of occupants; electronic sound masking, music, paging and audio equipment, namely, controllers, power supplies, speakers, horns for speakers, electro-acoustic transducers, sound emitters and routers and hubs for connecting the equipment