1. Catching and holding the first peak value in test. ng it on display for 0-30 sconds, then releasing the value and being ready for the next peak. 8. Power off time(0-99 minutes)can be set by yourself. 9. Connect it to pc by usb output, it will display the curve and table of testing result and analyze them, such as: print, statistical analysis, etc. 10. Option: mini-printer
