I was hired to install a UV light and carbon monoxide detector in a client's home. The UV light is designed to kill bacteria and viruses, while the carbon monoxide detector is designed to detect the presence of carbon monoxide, a colorless, odorless, and tasteless gas that can be fatal if inhaled. I began by removing the old detector and installing the new one in the same location. I then connected the detector to the power source and tested it to ensure it was working properly. Finally, I cleaned up the work area and made sure the client was satisfied with the work before leaving.