Test equipment for resistance thermometers, Measuring and testing equipment, Electrical, Electronics & Optical, Audiometer calibrators, Signal multipliers for electrical or electronic applications, Calibrators, voltage and current, Test equipment, electrical and electronic, for compact disc (CD) production lines, Electrical test or calibration equipment, tuning fork based, Quality and reliability test equipment for electronic components and systems, High voltage-low frequency (HV-LF) generating test equipment