Features: The Alcohols Ethanol Sensors Module is a highly efficient and reliable gas detection device, perfect for detecting alcohols concentration in various applications. Featuring high sensitivity to alcohols and its vapors, this sensors quickly responds to changes, offering both analog and digital outputs for flexible integration for Arduino51 projects. Ideal for hobbyists, electronics enthusiasts, and professionals working on DIY projects or industrial applications requiring precise alcohols detection. Commonly used in breathalyzers, driver alcohols testing, the food industry, and beverage sectors, ensuring safety and compliance across diverse environments. With built in temperature and humidity compensation, the sensors module maintains stable performances under varying conditions, making it versatilitys for any project involving detection. Specifications: Component:Plastic Size:Approx.35.5x22.5x23mm/1.4x0.89x0.9inch Option Type:1pc Ethanol Sensors Module,3pcs Ethanol Sensors Module; Main chip: AT89S52 Working Voltages: DC5V 150mA Package Includes: Package A 1pc Ethanol Sensors Module Package B 3pcs Ethanol Sensors Module note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.