[Compact and Sleek Design] This device features a compact, lightweight build with a minimalist, stylish look, making it easy to carry. Its 3D multi-vent shell design ensures real-time air circulation, enabling high-sensitivity readings by allowing the sensor to fully contact the air, accurately detecting small particle levels [Real-Time Concentration Detection] Equipped with a high-performance electrochemical CO sensor, this device monitors CO concentration in real time, providing accurate data even in harsh environments. It is highly sensitive, with ultra-low power consumption and fast processing for precise results [Mobile App Control & Smart Integration] Through the mobile app, users can monitor indoor CO levels from anywhere, keeping them informed about home air quality and allowing for prompt action if there are leak risks. The device integrates with other smart home components, such as valves, exhaust fans, lighting, switches, and alarms, for a safer, connected home experience [Multiple Alarm Methods] This device continuously monitors CO levels in the environment, triggering alarms if concentrations rise too high. Alerts include an 80dB on-site alarm, app notifications, and phone alerts via SMS, ensuring you stay informed of CO levels in your home [High Compatibility] Supporting WiFi protocol, this model is compatible with various smart home devices and can operate independently without a gateway [Wide Applications] Powered via a standard USB cable (no built-in battery), this CO detector is convenient and versatile, ideal for homes, greenhouses, camping areas, factories, cars, and more Specifications: Material: ABS Version: Tuya WiFi Detection Technology: Electrochemical CO sensor Communication Protocol: WiFi App Compatibility: Tuya App / Smart Life App Alarm Methods: 80dB on-site alarm / app notification / SMS / phone alert Compatible Devices: Valves, exhaust fans, lights, switches, sirens, etc. Dimensions: 100x100x35mm Power Supply: USB power cord (no built-in battery)