Rayleigh Instruments RI-D240 Multifunction Energy Meters. Energy pulse LED. -/1A or -/5A CT input. Single phase or three phase networkpatible. Programmable voltage and CT ratio. True RMS measurement. Cost effective and accurate. Modbus or …Multi-function key has two actions: Short press: Press the key and not less than 10 ms, release key within 1.5 seconds. Long press: Press the key more than 1.5 seconds. Power on. In the power off state, short press the multifunction key, the tester is turned on and automatically measured. Power on & measurement …【wildly applicaton】A full-color display multi-function test instrument that can measure triodes, diodes, resistors, capacitors, inductors, thyristors, field effect transistors, regulators, dual diodes, light emitting diodes, infrared decoding. ... This item: LCR-T7 Transistor Tester, LCR Meter, Multifunction Full Color Graphic Display TFT ...Precise impedance measurement for passiveponents. Chroma LCR meters measure inductance (L), capacitance (C), and resistance (R) ofponents duming inspection. Component testing often requires much more than a simple resistance, capacitance or inductance value at a given test frequency and stimulus voltage.