I'm selling this because I no longer use it. I used it for about 2 years, but I've kept it at home since I bought a different cycle computer. I used it quite a while ago (about 10 years), but I think it's relatively clean because I put a film on the screen and a silicone cover around it. I removed the film when I listed it. It has been used many times, so there are scratches and dirt. Please check the pictures. I confirmed the operation before listing it, and it started up and worked without any problems. Please check the photos for the included items.