1.High- oscilloscope function:A:DST-201 provides a sampling rate of 5MSa/s and an analog bandwidth of 1MHz, ensuring waveform analysis. It is equipped with voltage protection up to ±400V, suitable for a wide range of applications. 2.Multi-function signal generator function:Supports 13 waveforms with a frequency range of 0-10KHz and an adjustable output voltage of 3V. The frequency, amplitude and duty cycle can all be fine-tuned to meet various testing needs. 4.Overload protection and portable design:The device is equipped with overload protection and low battery warning for added safety. Its compact and design, as well as a 2.8-inch TFT color display, ensures clear and intuitive visual effects. Built-in 3000mAh rechargeable battery supports up to 15 hours of standby time, perfect for mobile use. 3.Comprehensive multimeter function:DST-201/210 includes a variety of functions such as recording mode, automatic measurement, voltage, current, resistance, capacitance, diode/continuity, frequency, temperature, data hold and LIVE zero/live line, providing powerful functions for various measurements. 5.User-friendly and multifunctional:A:DST-201/B:DST-210 is powerful and flexible, easy to operate, and is an ideal multifunctional instrument for professionals, factories, schools, hobbyists and home users.