MQ316 Breath Odor Gas Sensor Module Digital 3V Ethanol Semiconductor Detector (5200) 2025 Key benefits Reliable ethanol detection: Semiconductor sensing element tuned for ethanol and breath odor detection with a sensitivity range of 5 to 200 for ethanol. Easy integration: Digital output and 3V operation make the module simple to connect to common microcontroller projects and battery powered prototypes. Stable and precise performance: Designed for consistent readings and stable operation, suitable for repeated testing and embedded systems. Compact module form: Small PCB module with standard pin headers for straightforward mounting and wiring. What this module does and why you need it Detects ethanol vapor and changes in breath odor concentrations using a semiconductor sensor element, delivering a clear digital signal when thresholds are reached. Solves the problem of adding reliable ethanol sensing to electronic projects without complex signal conditioning. Stands out for compatibility with low voltage systems and for providing a ready to use digital interface that reduces development time. Important attributes Model: MQ316 Function: Breath odor and ethanol vapor detection using semiconductor sensing technology Output: Digital signal for simple threshold detection and easy microcontroller input Voltage: 3V operation for compatibility with low voltage electronics Performance: Sensitivity range 5200 for ethanol, described as precision and stable performance Build: Semiconductor sensing element mounted on a compact module with standard header pins Typical applications Portable odor detection prototypes and hobby projects where quick, simple ethanol detection is required Embedded systems and consumer devices that monitor breath odor levels or detect ethanol vapors in enclosed spaces Educational labs and microcontroller workshops for learning gas sensing and implementing threshold based alarm or indicator systems Quick integration tips Connect module to a 3V supply and a digital input pin on your microcontroller or logic device Use the digital output to trigger LEDs, buzzers, or microcontroller routines when ethanol levels cross a set threshold Allow the sensor element to stabilize before taking measurements for more consistent results Package suitability Intended for electronics hobbyists, developers, and engineers who need a compact, easy to integrate ethanol sensing module for projects, prototypes, and product development. Note MQ316 is a semiconductor gas sensor module designed for ethanol detection with digital output and 3V operation. It provides a practical solution for adding ethanol and breath odor sensing capability to electronic systems.