1. Open the 9D nonlinear health detector and enter the setting interface.
2. According to the model of the test instrument used, find the language setting option and select Chinese.
3. The language setting option is not in the setting interface. Find other setting options or contact after-sales customer service for help. 9D nonlinear health detector is a kind of equipment to obtain human health information by measuring the bio-electromagnetic wave information, spectrum and waveform of human body.