The short answer is, I don't know. I do have the Air-X Nitrox manual though, so maybe that'll help:
1. Shut the valve, purge the regulator and wait for 15 seconds.
2. Switch on the dive computer (contacts B and E) and move it into the position shown below. (shows tip of antenna butted against left side of computer)
Transmitter and dive computer must be in physical contact during the entire pairing procedure.
3. Open the tank valve. The transmitter briefly sends a pairing sequence to the computer.
4. The dive computer shows a flashing <PAIr> in the display-position of tank pressure shortly after the valve has been opened.
5. In order to confirm the pairing, the B- and E-contacts have to be bridged within 5 seconds. A bleep confirms the input and the <PAIr> display remains still. The computer and transmitter must remain in physical contact until the confirmation has been done.
6. Tank pressure is displayed after approximately 10 seconds.
Edit: Oops. Alternatively, follow Easy's surprisingly similar directions.