■ Super over-current protection, short-circuit protection function

■ Large LCD display with backlight

■ 3 3/4 digits voltage and frequency display at the same time

■ Logarithmic sweep frequency and manual frequency modulation two ways

■ Sweep start point, end point and sweep time can be set as required

■ Unique and reliable audio power amplifier design

■ With attenuation output (600Ω load resistance)

■ Convenient operation and maintenance