Eddie
I have just gone into the Spacelabs website and posted the following message.
CAN I SUGGEST THAT YOU GO INTO THE WEBSITE
https://www.ebme.co.uk/forums/ubbthreads.php/topics/32960/Reynolds_Medical_Cardio_Naviga#Post32960 AND RESPOND TO EDDIE IN JEDDAH !!
In the event of proable failure,
Their UK good guy and he is good, is Steve Elms, Technical manager.
Tel 0845 6017 224 or Fax 0845 601 7225. He may be able to point you in the right direction