Camera and flash gun trigger voltage

Question

Hello Kalaci, First, I would like to thank you for your help with trigger voltage compatibillity for my camera and flash gun.
I wish to buy a wirless trigger but the seller needs to know the trigger voltage of my fuji finepix S9500 and the voultage of my Vivitar auto thyristor 2800.
Would you know the voltage for both or could you tell me where I could find them?
Kind regards,
Syd.