A device for measuring the characteristics of a flow within a pipe, the flow having a flow direction and the device comprising: a plug having a nose at a forward end of the plug facing the oncoming flow, a body attached to the nose and a tail attached to the body at a rearward end of the plug ; two or more strut assemblies , each strut assembly comprising: a forward strut having a first end and a second end, said first end of said forward strut being fixably attached to said plug proximate said forward end ; a rearward strut spaced apart from the forward strut and having a first end and a second end, said first end of said rearward strut being fixably attached to said plug proximate said rearward end ; a skid having an inner surface , said skid being fixably attached to said second end of said forward strut and said second end of said rearward strut such that said inner surface faces said plug ; the device being characterized by : said plug having at least one portion having a constant diameter that is smaller than the adjacent forward end facing and rearward end facing portions of said plug , forming at least one venturi; and an electrical impedance spectroscopy sensor located on said inner surface for measuring said characteristics of said flow. a plug having a nose at a forward end of the plug facing the oncoming flow, a body attached to the nose and a tail attached to the body at a rearward end of the plug ; two or more strut assemblies , each strut assembly comprising: a forward strut having a first end and a second end, said first end of said forward strut being fixably attached to said plug proximate said forward end ; a rearward strut spaced apart from the forward strut and having a first end and a second end, said first end of said rearward strut being fixably attached to said plug proximate said rearward end ; a skid having an inner surface , said skid being fixably attached to said second end of said forward strut and said second end of said rearward strut such that said inner surface faces said plug ; a forward strut having a first end and a second end, said first end of said forward strut being fixably attached to said plug proximate said forward end ; a rearward strut spaced apart from the forward strut and having a first end and a second end, said first end of said rearward strut being fixably attached to said plug proximate said rearward end ; a skid having an inner surface , said skid being fixably attached to said second end of said forward strut and said second end of said rearward strut such that said inner surface faces said plug ; the device being characterized by : said plug having at least one portion having a constant diameter that is smaller than the adjacent forward end facing and rearward end facing portions of said plug , forming at least one venturi; and an electrical impedance spectroscopy sensor located on said inner surface for measuring said characteristics of said flow. said plug having at least one portion having a constant diameter that is smaller than the adjacent forward end facing and rearward end facing portions of said plug , forming at least one venturi; and an electrical impedance spectroscopy sensor located on said inner surface for measuring said characteristics of said flow. <EOS>