FEATURE:1-Single- chip technology +4.3- inch TFT capacitive touch (optional 7-inch) optional computer communication or data printing 2-PID control ultrasonic time power can be set from 1% to 100%3- Sample temperature detection frequency automatically tracking and the fault is automatically alarmed4-with overload protection function and the horn does not invade the liquid it will automatically protect the horn from damage5-Voice alarm if fault over temperature or operation error.