Gas Sensor Module with Dual Indicators and Sensitivity Detection Key Features: Dual Indicator Design: Equipped with a doublesided circuit board featuring both a power indicator and a TTL output indicator for clear operational status monitoring. Sensitivity Detection: Supports DO switching (TTL) output and analog AO output, enabling accurate detection of gas concentrations with rapid response and recovery times. TTL Output Functionality: Output is active at low level; when triggered, indicator light turns on. Can be directly connected to a microcontroller (MCU) or relay module for seamless integration. Analog Voltage Output: Higher voltage corresponds to higher gas concentration, allowing precise measurement and monitoring. Performance and Compatibility: Designed for reliable gas detection in various environments. Fully compatible with standard MCUs and relay modules, simplifying implementation in custom systems. Supports both digital and analog output modes, offering flexibility in application design. Material and Build: Durable doublesided circuit board construction for stable, longterm use. Quality components ensure consistent readings and dependable performance. Suggested Applications: 1. Air Quality Monitoring: Integrate into home, office, or industrial setups to detect and respond to harmful gas levels. 2. Industrial Safety Systems: Use in factories, workshops, or maintenance facilities to protect personnel from hazardous gas exposure. 3. Embedded Projects: Ideal for enthusiasts or engineers building custom sensing devices for environmental data collection. This module offers precise gas concentration measurement and straightforward connectivity, making it a practical choice for projects and safety systems requiring accurate and reliable detection.