ABSTRACT
The design uses the microcomputer Atmega16 as a control center of the temperature and flow monitoring system. A center of temperature and flow monitoring system is composed of Atmega16，NTC temperature sensors and Hall-flow sensors .The system design and its hardware and software are given. Its design has an excellent function and a cheap price. Through joint software and hardware debugging system it can control the real-time temperature and flow. Its design has an excellent function and a cheap price. Through joint software and hardware debugging system it can control the real-time temperature and flow. It can set the test time and flow. It is test the various parts of information through the LCD display. And a sound and light alarm tips，it can raise test efficiency，conservation of water resources，labor- saving, labor the industry has good value.
Keywords: Atmega16 ， NTC temperature sensors ， Hall-flow sensors
