A digital oscilloscope (DSO) is an oscilloscope which stores and analyses the input signal digitally rather than using analog techniques. It is now the most common type of oscilloscope in use because of the advanced trigger, storage, display and measurement features which it typically provides.^[1]

The input analogue signal is sampled and then converted into a digital record of the amplitude of the signal at each sample time. The sampling frequency should be not less than the Nyquist rate to avoid aliasing. These digital values are then turned back into an analogue signal on a cathode ray tube (CRT), or transformed as needed for the various possible types of output—liquid crystal display, chart recorder, plotter or network interface.^[2]

Digital oscilloscopes costs vary widely; bench-top self-contained instruments start at US$400 or even less, with high-performance models selling for tens of thousands of dollars.

Vista RF’s DOS-10-500, This product integrates digital oscilloscope, transistor tester and signal generator functions into one machine. With the real-time sampling rate of 10MS/s and bandwidth of 500Khz. Support maximum measurement of 400V voltage signal. With complete trigger function (automatic, single, regular). Equipped with an efficient button AUTO, the measured waveform can be displayed without cumbersome adjustments. Automatically identify and measure various transistors. Automatic detection of pin definitions. 6 kinds of signal waveforms detection. And with circuit continuity test function.

3 In 1 Function: This product ingeniously integrates digital oscilloscope, transistor tester and signal generator functions into one machine.

Digital Oscilloscope Function: With the real-time sampling rate of 10MS/s and bandwidth of 500KHz.

Support maximum measurement of 400V voltage signal.

With complete trigger function (automatic, single, regular).

Equipped with an efficient button AUTO, the measured waveform can be displayed without cumbersome adjustments.

Transistor Tester Function: Automatically identify and measure various transistors, including NPN and PNP triode, N-channel and P-channel metal oxide-semiconductor field effect transistor, JFET, diodes, double diodes, thyristors,as well as resistors, inductors, capacitors, field-effect transistor, etc. passive component.

Automatic detection of pin definitions.

Signal Generator Function: 6 kinds of signal waveforms: sinewave, squarewave, pulsewave, trianglewave, rampwave, direct current. 1-100KHz adjustable output frequency. 3.3V adjustable output voltage. 0-100% adjustable output duty ratio.

Tool Box Function: Automatically analyze specific Protocol infrared code.

Other function modes: including circuit continuity test, 0-40V input voltage measurement, PWM output, 0-32V diode measurement, temperature and humidity sensors measurement, etc.

2.4inch Digital TFT Display: TFT color screen, high resolution display with LED backlight, with bright colors and high contrast, you can see the data clearly in bright light.

Rich and Powerful Features: One button for automatic adjustment, support for free switch, support intelligent fire preventions.

Long Endurance: Built-in 1500 mAH high-capacity rechargeable polymer lithium battery, long lasting lifespan, Type-C interface, continuous power supply without isolation transformer, safer to use.

Wide Applications: Suitable for MCU debugging, car repairing, home appliance repairing, DIY electronic competition, power-supply debugging, inverter, etc.

Material: ABS

Type: standard configuration, high configuration (optional)

Display: 2.4 inches TFT color screen

Battery: Built-in 1500mah rechargeable lithium battery (included)

Charging interface: USB Type-C, +5V

Digital Oscilloscope: 10MSa/s

Real-time sample rate: 500Khz

Analog Bandwidth: 1ΜΩ

Input resistance: Alternating Current/Direct Current

Coupling method: 400V

Test voltage ranges: 10mV-10V

Vertical Sensitivity (x1): 1us-10s

Horizontal time base ranges: Trigger mode: Auto / Normal / Single Trigger type: Rising edges / Falling edges

Waveform Freeze: Yes

Automatic measurement: Yes

Transistor Tester: Capacitor: 25pF~100mF

Resistor: 0.01Ω ~ 50ΜΩ

Inductor: 10uH~1000uH

Battery: 0.1~4.5V

Input voltage: 0~40V

DHT1: 0-60°C/5-95%

Signal Generator: Sine wave: 1-10KHz/0-3.3V/50%

Square wave: 1-100KHz/3.3V/50%

Pulse wave: 1-100KHz/3.3V/0-100%

Trianglewave: 1-10KHz/0-3.3V/50%

Ramp: 1-10KHz/0-3.3V/0-100%

Direct current: 0-3.3V

Packing List (Standard): 1 * 3in1 Digital Oscilloscope

3 * Test Hook

1 * Probe

1 * Type-C Cable

1 * Manual

(High Configuration): 1 * 3in1 Digital Oscilloscope

1 * Adaptor

1 * Probe

1 * High Pressure Probe

3 * Test Hook

1 * USB Type-C Cable

1 * Manual