Clips of plastic for sealing bags

Electric or electronic sensors for the internal monitoring and inspection of pipes and contaminants therein; Ultrasonic detectors for the internal monitoring and inspection of pipes and contaminants therein; Detectors for the detection of contaminants, namely, sand monitors, pig detectors, particle monitors, condition monitors, corrosion-erosion monitors, leak monitors, spectrum analyzers, [ temperature monitors, ] and vibration monitors [ pressure monitors ]