... for measurement and operation. MCH-8817/MCH-8817AMeasurement ParameterL/Q, C/D, R/Q, |Z|/Q, |Z|/DTest Frequency100Hz, 120Hz, 200Hz, ... five selectionInterfaceHANDLER, RS-232C(Option)Operating Ambient10ºC ~30 ºC, ≤80%RH for precise measurement0ºC ~40 ºC, ≤90%RH for normal usage.Power ... are subject to change without prior notice. MCH LCR Meter Product, MCH-8817A LCR Meter,10KHz testing frequency,w/RS-232 ...