GWR-2000 Four-Wire 4-20 mA HART Manual
https://www.binmaster.com/amfile/file/download/file/1160/product/4231/
GWR-2000 Four-Wire Modbus Manual
https://www.binmaster.com/amfile/file/download/file/1161/product/4232/
GWR-2000 Two-Wire 4-20 mA HART Manual
https://www.binmaster.com/amfile/file/download/file/1162/product/4233/
GWR-2000 Two-Wire 4-20 mA Hart Quick Setup Guide
https://www.binmaster.com/amfile/file/download/file/1163/product/4279/
GWR-3000 Four-Wire 4-20 mA HART Manual
https://www.binmaster.com/amfile/file/download/file/1165/product/4234/
GWR-3000 Modbus Manual
https://www.binmaster.com/amfile/file/download/file/1166/product/4235/
GRW-3000 Two-Wire 4-20 mA HART Manual
https://www.binmaster.com/amfile/file/download/file/1167/product/4236/