The SMX100 series of smart sensors are high-performance, versatile intelligent sensors. They employ a three-electrode electrochemical sensor, a catalytic sensor, and a high-performance microprocessor, allowing for the measurement of corresponding gas concentrations by integrating different sensor types. Their compact size and digital output capabilities facilitate user operation and debugging, significantly shortening the user's design and development cycle. They perfectly integrate electrochemical sensors and circuitry to meet the needs of users in various gas detection applications.