Function: 1. Convenient and 3-in-1: this digital oscilloscope, electronic component tester and PWM signal generator function, combined into one. The oscilloscope has a real-time sampling rate and a bandwidth of 500 kHz. Voltage signals up to 400 V can be measured. 2. Identify device type: Oscilloscope mode can test the circuit signal waveform, while Mos test mode can test different types of transistors, which can identify device type, pin polarity, hFE, state voltage, junction capacitance, resistance, inductive components, etc. Signal generator mode, you can use sine, pulse, triangle or ramp waveform. 3. Sine frequency output signal: The signal generator has 5 built-in fundamental waveform, sine wave output frequency 1-10KHz 0-3.3V 50%, vertical sensitivity 10mV to 10V, horizontal time base range 1us-10s, more waveform data can be obtained in the unit time, making the waveform more accurate. 4. TFT screen: The oscilloscope is powered by a built-in 1500 mA battery, which will be fully charged in 1-2 hours with a 5V 2A power supply and can run for 4 hours (green indicator / red charging indicator). The digital handheld oscilloscope and transistor tester features a 2.4 inch high resolution TFT screen with adjustable backlight. Better reading experience and easy to use. 5. Multi-interface display: The oscilloscope can test various functions and support multi-interface screen display. With the keyboard design, it is more convenient to operate and select various test function modes. 6. Applicable Components: The oscilloscope supports online operation with a PC, which is especially useful for quickly pairing transistors, identifying mixed face-mount and wordless components, and pre-checking small series components. It can automatically identify and measure various transistors, including NPN and PNP transistors, diodes, double diodes, etc. Specification: Item Type: Digital Oscilloscope Material : ABS The main parameters of the machine DSO model TC3 Display 2.4 inch TFT color screen, LED backlight USB Type-C Charging Specification Stand Specifications One-piece folding stand Digital oscilloscope mode parameters 10MSa/s real-time sampling rate 500 kHz analog bandwidth Input impedance 1MO AC or DC connection method Test voltage range 400V Vertical sensitivity 10mV-10V Time base horizontal range 1us-10s Trigger Mode Auto, Normal, Single Trigger type Rising edge or Falling edge Mileage Freeze Yes Automatic measurement Yes Component test mode parameters A description of the class scope Triode β greater than 10 less than 600 Magnification hfe, base-emitter voltage Ube, lc/le, reverse collector-emitter cut-off current lceo, lces, forward voltage drop of protection diode Uf Diode Forward voltage drop Forward voltage drop, junction capacitance, reverse leakage current Voltage regulator diode 0.01-4.5V (test area 1 2 3) Forward voltage drop, reverse breakdown voltage 0.01-32V (KA test area) reverse breakdown voltage Field lamp JFET gate capacitance Cg, drain current ld at Vgs, forward voltage drop of protection diode Uf IGBT Drain current ld at Vgs, forward voltage drop of the protection diode Uf MIOSTET Turn-on voltage Vt, gate capacitor Cg, drain resistor Rds, forward voltage drop of the protection diode Uf Unidirectional thyristor Turn on voltage Gate voltage Bidirectional thyristor Trigger current Capacitance 25pF-100mF Capacitance value, Vloss Resistor resistance value 0.010-50 MO Inductance 10uH-1000uH Inductance value, DC resistance Battery 0. Voltage value 1-4.5 V, positive and negative polarity Input voltage 0-40V Voltage value DS 18B20 0-85C Temperature DHT1 0-60C/5-95% humidity Infrared remote control decoding protocol Infrared coding Display user coding and data coding, well display corresponding infrared waveform Signal generator parameters Sine wave 1-10KHz/0-3.3V/50% Waving Rectangle 1-100KHz/3.3V/50% Pulse ripple 1-100KHz/3.3V/0-100 percent Triangular Ripple 1-10KHz/0-3.3V/50% Slope 1-10KHz/0-3.3V/0-100 percent DC 0-3.3V Package List: 1 x oscilloscope 1 USB cable 3 x test hook cable 1 x Ordinary Probe 1 x User Manual