Features: The SC16B CO Electrochemical Gas sensors Module delivers high sensitivity CO detection with super low power consumption, featuring selectable UART/ digital outputs for flexible integration in various smart devices. Engineered with built in temperature compensation and outstanding output, this PCB based module ensures accurate CO through advanced electrochemical technology while maintaining long term stability and anti interferences capabilities. Ideal for developers, HVAC engineers, and smart home manufacturers requiring stable air quality detection components for environmental systems. for integration in portable air quality analyzers, smart ventilation systems, air purifiers, and home automation devices that demand precise carbon monoxide levels assessment. Specifications: 03 Technical Indicators Product model SC16B-CO Detect gas Carbon monoxide Output data UART/( or alarm) output (3.3V levels) Operating voltages 4.2V~5.5V Response time ≤30 seconds Recovery time ≤30 seconds ranges 0~1000ppm Resolution ≤1ppm Operating temperature -10℃~40℃ Working humidity 15% -90% ( not condensation) Storage temperature -20°C~60°C Service life span 1 year (0℃~35℃ in the air) Module size Length 18.2mm×width 18.1mm×height 22.8mm Package Includes: SC16B-CO type electrochemical carbon monoxide modulex1 note: Please allow 1-2cm errors due to manual measurement.  Please allow for slight color differences due to different display resolution