Hello, I am selling my OSTC 2C here. The computer has 259 dives on the clock and works perfectly. It can calculate up to 5 gases OC/CC with and without gradient factors. Included is a transport case and a USB charging cable. As you can see in the pictures, he has a few scratches. These do not interfere with diving at all and do not affect the computer. PayPal & shipping possible! If you have any questions, please do not hesitate to contact us!