The existing methods and instruments for formaldehyde measurement always have disadvantages such as bad real time capability,tedious steps and weak interconnection. In order to solve these problems,a design procedure for monitoring formaldehyde concentration is mentioned based on the principle of electrochemical reaction. And a corresponding real-time intelligent monitoring system is built based on WiFi module and MSP430F149 MCU,the concentration of formaldehyde of the environment can be accurately measured...