FNIRSI® DSO-TC4 3-IN-1 10MHz 48MSa/s Digital Oscilloscope Transistor Tester Signal Generator is a versatile multifunction test instrument that combines a digital oscilloscope, component tester, and signal generator into a single portable device. Ideal for electronics troubleshooting, circuit debugging, component analysis, education, and laboratory applications.
FNIRSI® DSO-TC4 3-IN-1 10MHz 48MSa/s Digital Oscilloscope Datasheet






| Parameter | Value |
|---|---|
| Brand | FNIRSI® |
| Model | DSO-TC4 |
| Product Type | Oscilloscope, Component Tester & Signal Generator |
| Display | 2.8 Inch TFT Color Screen |
| Backlight | Adjustable |
| Power Supply | USB Type-C (5V/1A) |
| Battery | 3.7V 1500mAh Lithium Battery |
| Languages | Chinese, English, German, Portuguese, Japanese, Spanish, Korean, Russian |
| Dimensions | 90 × 142 × 27.5 mm |
| Weight | 186 g |
| Parameter | Value |
|---|---|
| Real-Time Sampling Rate | 48MSa/s |
| Analog Bandwidth | 10MHz |
| Input Impedance | 1MΩ |
| Coupling Mode | AC / DC |
| Input Voltage Range (1X Probe) | 80Vpp (±40V) |
| Input Voltage Range (10X Probe) | 800Vpp (±400V) |
| Vertical Sensitivity | 10mV/div ~ 10V/div |
| Time Base Range | 50ns ~ 20s |
| Trigger Mode | Auto / Normal / Single |
| Trigger Type | Rising Edge / Falling Edge |
| Trigger Level | Adjustable |
| Waveform Freeze | Supported |
| Automatic Measurements | Max, Min, Avg, RMS, Vpp, Frequency, Period, Duty Cycle |
| Parameter | Value |
|---|---|
| Resistor Range | 0.01Ω ~ 50MΩ |
| Capacitor Range | 25pF ~ 100mF |
| Inductor Range | 10μH ~ 1000μH |
| Diode Test | Supported |
| Zener Diode Test | 0.01V ~ 32V |
| Transistor Test | Supported |
| MOSFET Test | Supported |
| JFET Test | Supported |
| IGBT Test | Supported |
| SCR Test | Supported |
| TRIAC Test | Supported |
| DS18B20 Detection | Supported |
| DHT11 Detection | Supported |
| Parameter | Value |
|---|---|
| Output Waveforms | 13 Types |
| Frequency Range | 0 ~ 50kHz |
| Square Wave Duty Cycle | 0 ~ 100% |
| Output Amplitude | 0.1V ~ 3.0V |
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1 x FNIRSI® DSO-TC4 3-IN-1 10MHz 48MSa/s Digital Oscilloscope Transistor Tester Signal Generator
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
If you receive a product damaged during shipment, please notify us within 3 days of receiving the product, supported by proper pictures and a description. Once our support team accepts the return, we will provide a replacement or a complete refund, including the return shipping cost.
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
We don’t accept returns for products damaged due to improper use. Moreover, we don’t accept returns if the ordered product is not suitable for a specific application. Please read the product specifications and datasheet carefully before placing an order. Returns are accepted only within 3 days from the date of delivery.
We ship all over India with free shipping on all prepaid orders above ₹500. For Cash on Delivery (COD) orders, ₹80 will be charged for orders below ₹599 and ₹30 for orders above ₹599.
For any questions related to shipping, please contact our support team at support@quartzcomponents.com.
Note: The minimum order value for COD orders is ₹500.