Alarm monitoring systems; Communication hubs; Computer peripheral devices; Data processing apparatus; Flashing safety lights; Intercoms; Micro-processors; Pedometers; Scanners; Surveying machines and instruments; USB card readers; Access control and alarm monitoring systems; Acoustic meters; Apparatus for transmission of communication; Computer monitors; Electric meters; Electric navigational instruments; Electrotechnical vibration meters; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Frequency meters; Gas meters; Laser pointers; Measuring apparatus, namely, clamp meters for measuring electricity; Panel meters, namely, an electronic instrument that displays an input signal in either a digital or analog form; pH meters; Railway signals; Scientific measuring instruments, namely, conductivity meters; Traffic control equipment, namely, actuated and pretimed traffic signal controllers; Vibration meters