... ,Z/Q/Z/D parameter test 3.w/RS232 interface,LCD display MCH LCR Meter,MCH-8817A LCR Meter, ... 128 dot , back-lighted LCD display which provides user friendly interface for measurement and operation. MCH-8817/MCH-8817AMeasurement ParameterL/Q, ... C ~30 ºC, ≤80%RH for precise measurement0ºC ~40 ºC, ≤90%RH for normal usage.Power supply198V~242V, 47. ... 8817A LCR Meter,10KHz testing frequency,w/RS-232 interface