High speed sampling of super-sensitivity and anti-interferences ensure accuracy of each spot check. Three large keypads and portable suspension type are designed for convenience of middle ages and seniors. Clamp finger tip into probe clip, measurement can then begin. Each test needs only about 10 minutes and capable for multiple tests. Personal ID settings on SD inner memory card could be applied for family use. Each SD card can store data over 100 tests. Data files then can be transmitted via communication network into Youwin Central Data Bank, personal health report on demand then can be printed after waveform analysis.