Children's comprehensive quality tester of this set of equipment, there is a known as the electroencephalography module of the equipment, the application of the equipment is mainly used for the detection of brain waves, through the brain waves of different frequencies can be comprehensively analyzed the change of children's attention, that is to say, the electroencephalography module is mainly used in the children's attention to the detection. Brain wave is some spontaneous rhythmic neuroelectric activity, and its frequency varies between 1-30 times per second, which can be divided into four bands, i.e., δ (1-3Hz), θ (4-7Hz), α (8-13Hz), β (14-30Hz), and β (14-30Hz), and in the case of the brain wave, it can be analyzed by the different frequencies of the brain wave. -30Hz), while during sleep there can be other normal EEG waves with more specific waveforms, such as hump, σ, λ, κ-complex, μ, etc. δ waves have a frequency of 1-3Hz and an amplitude of 20-200μV. The bands are generated when a person is in infancy or has immature intellectual development, and when an adult is in a state of extreme fatigue and lethargy, or in a state of anesthesia. θ waves have a frequency of 4-7Hz, and an amplitude of 20-200μV. 4-7 Hz, with an amplitude of 5-20 μV. This wave is extremely significant in adults who are frustrated or depressed and in psychiatric patients. However, this wave is the main component of the EEG in adolescents (10-17 years old). alpha waves have a frequency of 8-13 Hz (mean 10 Hz) and an amplitude of 20-100 μV. they are the basic rhythm of normal human brain waves, and their frequency is fairly constant in the absence of external stimuli. The rhythm is most obvious when a person is awake, quiet and with his eyes closed, and disappears immediately when he opens his eyes (stimulated by light) or receives other stimuli. β-wave has a frequency of 14~30Hz and an amplitude of 100~150 μV, and it appears when a person is nervous and emotionally agitated or excited, and is immediately replaced by the original slow-wave rhythm when he is awakened from a nightmare. When a person is in a happy mood or in quiet meditation, the beta, delta, or theta waves, which have been excited, are weaker at the moment, and the alpha waves are relatively strengthened. Because this waveform is closest to the right brain's EEG biorhythms, the person's state of inspiration emerges. To analyze the above common waveforms, the EEG module of Kangyu Medical's HL-2080G Children's Comprehensive Quality Tester induces brain waves accordingly to further improve the children's state of attention, high concentration and key thinking ability, comprehension and memory to achieve exponential improvement, thus improving the efficiency of learning and other aspects. The emergence of the EEG module so that children with poor concentration and low efficiency in doing homework have been effectively improved, so the children's comprehensive quality tester is gradually accepted and adopted by more and more children's organizations, Kang Yu medical for children's healthy growth to contribute to their own strength.