German BERTHOLD sensor 

 Germany Botuo BERTHOLD company was founded in 1949, is the density, level, humidity and flow, and other non-contact monitoring and parameter processing and on-line process analysis experts provide hot pieces of the light source based on X-rays or nuclear radiation technology and protective equipment detector and electronic equipment. 
 The models cited: Host: LB440-21; LB440-31; LB4405-06Gi; appliances: LB4405-04Gi The; LB4401-01 Gi25/25; LB4401-03 Gi50/50; liquid level detection: LB352-2; receiver: LB6639W; Controller: LB444; receiver the: LB6639W-of BGO-5M ID-81 637-08 ...