These four transmitters are roughly 1 year old but have not yet been used. They came with a large collection of technical diving and CCR equipment from a diver who can no longer dive. Shearwater products have a 2 year warranty which follows the device, no transferring necessary. 3 of them no longer have the paper packaging/sleeve around the case. 1 has a scratch on it from being stored out of the zippered case. All are 100% functional and can be used with any AI capable Shearwater computer along with other brands like Aqualung or Oceanic to name a few.
