Gas detectors for detecting the presence of gas; Gateway routers; GPS navigation device; GPS receivers; GPS tracking devices; Metal detectors; Power switches; Mobile computing and operating platforms consisting of data transceivers, wireless networks and gateways for collection and management of data; Power inverters; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Wearable global positioning system (GPS)
Electrical and Scientific Apparatus