38 mm TRACKBALL UNITS 
 
 The TBM34 series is a ruggedised professional trackball. The unit has been specially designed for harsh industrial environment applications : the self-adjusting PTFE seal of the trackerball guarantees an IP65 static (ball in rest) protection grade. Carrier plates and housing are metal (aluminium and steel).  
   
 ORDERING INFO (incl. cables)  
 Panel mount version Enclosed version  
 TBM34N1  TBM34S1  
   
 output : PS/2 & USB combo