3D/4D Ultrasound Linear Transducer/Probe GE 4D16L This listing is for a used GE 4D16L transducer/probe, compatible with the GE Logic 9 ultrasound machine only. The GE 4D16L is a volumetric linear probe and it is used for the following appliacations: small parts, peripheral vascular pediatrics, musculskeletal Item specification Frequency Range: 4.5 to 16 Mhz Foot Print : 50 x 58mm