12 volt radio 1.Used for excavator,loader 2.Fixed frequency 3.12V/24v automatic interchange 4.High resistance vibration 12 volt radio1). Featureremote typecan set up it at any placesuitable for excavator, kart,tractor, truck, loader,grader,earth moving machine and can be widely installed in: Sumitomo,Komatsu,Hitachi,Kato,Case,Sanyo,Kobelco and other famous band machines.thunder-proof ,aseismic ...