This Carbon Monoxide Detector Warning Alarm Sensor is a white, battery-powered unit with a 10 cm diameter. It features an electrochemical carbon monoxide sensor and operates with a 90 dB sound rating. Manufactured in China, the alarm comes with a one-month manufacturer warranty and is part of the First Alert 3120B model range. It is designed to detect carbon monoxide and provide a reliable warning system for home security. The unit weighs 0.75 kg and is a must-have for ensuring safety in any home environment.