Features: Premium Material: ABS+silicone casing, drop-proof and shockproof. The printed circuit board uses a costly immersion gold process, with high antioxidant corrosion resistance, stable working performance, and high reliability. 3-in-1 Design with 3.5-inch Color Screen: This product ingeniously integrates the functions of a digital oscilloscope, a multimeter, and a signal generator into one device. Features a 3.5-inch color screen for clearer readings and richer visual colors. Data visualization design with a user-friendly interface and operating mode allows users to quickly get started without extensive learning, improving work efficiency. Signal Generator: Equipped with a built-in signal generator function, featuring automatic waveform feeding and recognition. No need to display the measured signal waveform clearly without the measured signal waveform. High-Precision Multimeter: High-precision multimeter with true RMS measurement function. Supports testing of DC voltage, AC voltage, DC current, AC current, resistance, and capacitance. Digital Oscilloscope Function: The oscilloscope's real-time sampling rate is up to 280MS/s, capturing more signal details for more accurate measurement results. The 50MHz bandwidth meets the testing needs of most electronic devices, easily handling both high-frequency and low-frequency signals. Offers additional oscilloscope functions like overclocking, persistence, and XY mode for more cost-effective measurements. Intelligent Anti-Burn: Full overload protection, built-in intelligent anti-burn chip, and dual ceramic fuses prevent misuse of burn meters, ensuring safer operation. The built-in high-voltage protection module effectively prevents damage to the oscilloscope from high-voltage currents caused by misuse or equipment failure, enhancing equipment lifespan and safety. Waveform Saving & Screenshot Saving: Multiple waveform feeds for your daily needs, along with waveform saving and screenshot saving functions. Long press the SAVE button for 2 seconds to take a screenshot and save it for displaying the entire screen image, enabling secondary analysis of saved waveform data, or connect to a PC via USB cable to access stored waveforms. Wide Applications: Easily handles measurements across various fields, commonly used for testing and debugging electronic circuits, and troubleshooting and repairing electronic components.