DT39 bụ obere nnyefe dị arọ emepụtara maka saịtị mmepụta ihe na-achọ nnyefe ibu.
1. Onye na-ebufe nwere obere nha, arụ ọrụ kwụsiri ike, ọrụ dị mfe, yana nkwurịta okwu RS485.
2. A na-ejikarị ya eme ihe na ngwakọta ihe, metallurgy, converters na chemicals, ndepụta nri na nhazi nri, wdg.