... low frequency component measurement. TH2810D, with its latest measurement technologies, large character LCD display, surface mount technique, easy of use and excellent ... )Calibration functionOpen/Short sweep correctionMeasurement terminal5-terminalDisplay modeDirect, ΔABS, Δ%DisplayLarge character LCD with backlightMeasurement signalSignal frequency100Hz,120Hz,1kHz,10kHz,Output impedance30 ...