We had the electrician install two smoke/carbon monoxide detectors as well as a Ring pro doorbell. The electrician arrived on time and was very courteous and professional. He installed the detectors quickly and correctly and it was on to the doorbell. With a quick read of the instructions, he installed the video doorbell and made any and all the necessary adjustments per the instructions. It worked well from the installation and is still working with no problems per specs. I would definitely recommend them and call them for our next project.