General description Portable and easy to use, this Carbon Monoxide Combination Smoke Detector is designed for travel and home safety. It features a unique design that allows for wireless operation and simple installation, with screws included for mounting. The device combines a precise electro-optical sensor to detect smoke and carbon monoxide, ensuring high consistency and stability whether stationary or in motion. Technical specifications Power supply: 3 x 1.5V AAA batteries (included) Alarm sound level: 85 decibels Protection area: 80 square meters at a height of 6m-12m; 60 square meters at a height of 6m Detection threshold: Carbon monoxide concentrations above 100 ppm Usage The detector provides a quick and loud alarm when dangerous levels of carbon monoxide are detected. The red LED flashes, and an audible alarm sounds to alert users. Additionally, the device features a clear LED display that shows a 3-digit readout, including an "err" message if the device malfunctions. Upon