Train speed sensors are some electromagnetic sensors used to accurately measure the speed of moving parts of railway vehicles, including: wheels and the engine. Sadjad CNDE offers a variety of speed sensors used in Mashhad railway fleet. These sensors take advantages of high reliability, low cost, high technology and pass different standards (including: IEC 60068-2-1 2007, IEC 60068-2-2 2007, IEC 61373 1999, IEC 60068-2-27).