TH2817A precision LCR digital bridge is a high-precision, high-stability, wide-range impedance measurement instrument controlled by a 16-bit microprocessor. It can select sixteen typical test frequencies between 50Hz and 100kHz, and can select test signal voltages from 0.01V to 2.00V in steps of 0.01V. It can measure inductance L, capacitance C and resistance R. This instrument has powerful functions and excellent performance, and adopts a liquid crystal display, clear display, menu-driven operation, fast and convenient, can well meet the needs of rapid inspection in the production site and high precision and stable measurement needs in the laboratory. At the same time, the HANDLER interface, IEEE488 (optional) interface and RS232C interface provided by the instrument provide conditions for the instrument to be used in automatic sorting systems and computer remote control.