The KG-03 Series, manufactured by Magtrol, is a spot-welded extensometer equipped with stainless steel base plate. It has an impedance of 350 Ω, admissible overload of 150%, rupture overload of 300% and an operating temperature that ranges from -40 °C up to
+80 °C. The extensometer is used in a wide range of applications involving railway, rails and load checking devices.