■ 100Hz, 120Hz, 1kHz, 10kHz 4 dots

■ Basic accuracy: 0.25%

■  Test speed: the fastest 83ms

■  Output impedance 100Ω

■  Adopt SMT surface mount technology

■  Reasonable combination of simple operation and powerful functions

■  Good reading stability

■  4 ranges selection

■  Cost-effective digital bridge