Oscilloscope functions: Sampling rate: 48MSa/s Analog bandwidth: 10MHz Voltage protection: 400V Waveform storage: supports screenshot saving and viewing, which is convenient for data analysis Signal generator function:Supports 13 waveform outputs, frequency range 0-50KHz, output voltage adjustable 0-3v.Output parameters (frequency, amplitude, duty cycle) are adjustable, flexible to meet various needs Transistor function:High efficiency: Automatically identify the type and pin arrangement of the tested component, simplify the operation process, and improve test efficiency Diverse categories: Detect and analyze the performance and characteristics of semiconductor components such as transistors, diodes, triodes, field effect (FET), etc. Portable design:Equipped with a 2.8-inch TFT color screen, the picture is clear and intuitive,Built-in high-capacity rechargeable lithium battery (1500mAh), standby time 4 hours,Small and light, suitable for mobile use. Colour:As Shown Material:ABS Package Contents: 1 * Transistor Tester kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.