Oscilloscope + Waveform Generator + Multimeter: This multi-purpose oscilloscope owns 3 universal test instrument functions. Necessary helper for an engineer.Universal Multimeter Function: Test voltage, current, resistance, diode, capacitance, continuity.Waveform Generator Output Function: Provide sine wave, square wave, triangular wave, trapezoidal wave and other waveform output, sine wave is up to 25MHz. Intelligent Charging Control: 5V/2A large current or USB port of ordinary computer can be charged, easy to use, very convenient and handy with AUTO one-key test.Ultra-low Power Design: Type C charging interface, and standby for 2 months after every recharge of 2 hours with large capacity 18650 replaceable lithium batteries power supply. 5V/2A Charger + Type C Charging Cable: Type C power + data transfer interface, can share the charger and data cable with your mobile phone.Small In Size & Held In Single Hand: The 45 degree suspension bracket design provides you a work station anywhere anytime.One Key Export Out & Quick Comparison: 2 groups of reference waveform + 6 groups of waveform storage, simple and effective. Digital Voltmeter Function: Automatic frequency and amplitude measurement, convenient to use and it supports Chinese & English menu display.With Cursor Measurement Function: Supports time and voltage manual measurement, and measure the required waveform accurately.Color LCD Screen: Exquisite and smooth lines make the waveform clear and undistorted when magnify with minimalist keyboard design simplify operation. Unibody Casing: Fine touch feeling, favorable impact resistance, outstanding heat resistance, easy to disassemble.Self Calibration Function: Free from level drift after long time unused.Scan Code for Video Help Function: Scan code on back of machine to get help of online video help.