terwin44About us page. Established in 1975, Terwin Instruments Ltd., are one of the largest manufacturers of extrusion melt pressure temperature transducers, transmitters, indicators, controllersT:ManualsTerwin2000 Series Manual21G28-2000 Series Installation & Instruction Manual (E).docx Page 5 of 15 Terwin Instruments’ warranty is void in the case of any damage caused