Product Overview: The Ecosens is an all-in-one type eco-friendly device combined with air quality sensor and USB charger together, which senses to air contaminants in a car and warns a driver by both the flickering LED light and the alarming buzzer. It enables the driver to open the window to let in fresh air, to check the air filter, and to clean inside of the car. Key Features And Functions: 1. World's First USB Charger Integrated Hazardous Gas Detector 2. Products manufactured in Korea with built-in air quality sensor from Japan 3. Detects and alarms harmful gas in the air 4. When the air pollution level is 200 ~ 300ppm, smart sensor operates and LED flashes and alarm notification 5. Built-in ripple noise reduction circuit to extend battery life of charging equipment 6. iOS and Android smartphones and tablet PCs 7. 12V power supply for passenger cars and 24V power supply for trucks and buses Specifications: 1. 20MHz microprocessor with 1K flash memory 2. VOC (Volatile Organic Compounds) Smart Gas Sensor 3. VOC detection gases: carbon monoxide, such as carbon compounds, oil and gasoline in the gas or unburned, fuels from emissions hydrocarbon gas, cigarette smoke, septic odor, such as volatile organic compounds (VOCs) in addition to in-car air pollution to organic solvents alcohol, toxic gases emitted by paint, glue, etc. 4. Power indicator LED (red) and sensor response LED (green / orange) 5. Micro-buzzer (78dB) 6. Extensive input voltage (8V to 40V) 7. 2.1A high capacity output current and 10W high power supply 8. Overvoltage, overcurrent, reverse voltage protection and protection circuit Etc: 1. Received PIN UPP design award 2. Slim and sleek design and 2-tone color (Black & Dark Gray) 3. Blister packing box 4. CE / FCC certified and RoHS compliant 5. Operating temperature: 0 to 40C 6. Product size: 76x28x26mm 7. Weight: 20g 8. Without cable