Designed for readability, the SCUBAPRO Luna 2.0 AI wrist-mount dive computer features a large, high-contrast display screen and bright LED backlight. Its wireless air integration feature enables you to monitor tank pressure easily, plus provides true remaining bottom time (RBT) and allows your air consumption to be factored into the decompression calculation. With the Luna 2.0, your dive data has never been easier to read. Does NOT include transmitter. Transmitter is available seperately