1. The signal generator is small in size, has many functions, easy to operate and easy to carry.2. The key layout is reasonable, all functions have independent corresponding keys, easy to operate.3. Built-in battery, low power consumption, long standby time.DT-17N is 35/6 automatic digital instrument, is a stable performance, high precision, high reliability; with battery-driven automatic digital multimeter, the instrument adopts 21mm high LCD display, clear reading; About 15 seconds delay backlight, high pressure alarm and overload protection .It will more convenient to use.