Scientific Mes-Technik Pvt. Ltd. Offers Distortion Meter. Calibration Lab of Scientific Mes-Technik Pvt. Ltd. Is accredited to ISO/IEC 17025:2005. The model number of Distortion Meter is SM5027 that is designed with very low residual distortion and noise of only 0.005 percent. It is ideally suited for tests and measurements of high quality audio systems.