【3 in 1 free switching】 The DSO-TC3 cleverly integrates the functions of a digital oscilloscope, transistor tester, and signal generator, making it more practical and versatile. 【Compact design】 With a 2.4-inch high-resolution display screen, it provides clear readings and is portable with excellent convenience. 【Efficient and accurate】 stable output. Transistor detector automatically identifies and measures all kinds of transistors, automatically detects pins; Oscilloscope real-time sampling rate of 10MS/s, bandwidth of 500Khz, Maximum measurement of 400V voltage signal; The signal generator has six signal waveforms 【Excellent Endurance】 It is powered by a built-in large-capacity lithium battery, providing up to 240 minutes of continuous operation without the need for an isolation transformer for safe use. It also has a TYPE-C charging interface for more convenient charging. 【Wide application】 It is suitable for Suitable for DIY learning, on-site commissioning,appliance repair,power measurement