The FSIRSI DSO- TC3 is an innovative portable digital oscilloscope designed for electronics enthusiasts, engineers and masters. This universal 3 in 1 device includes oscilloscope, signal generator, transistor tester, diode lamp detector, voltage meter, resistance meter and other functions. The portable digital oscilloscope has a 2,4-inch coloured TFT screen, equipped with a rechargeable lithium battery and updated parameters compared to the previous model. This is a perfect choice for professionals and beginners, for whom matters are reliable and effective diagnostic tool.
Portable digital oscilloscope FNIRSI DSO- TC3 is suitable for electronics professionals, electricians, mechanics and radio amateurs. You can use it to diagnose car electrical systems, repair audio devices, test microcontrollers and analyze signals. Practical advice: Start with safer voltages, use appropriate probes to measure, check the battery status regularly. This portable digital oscilloscope is your reliable compass in any working situation.
Q: Can the FSIRSI DSO- TC3 measure high voltage?
Yes, the device can measure voltages up to 400 V in both AC and DC modes. It is important to use the appropriate probe and follow the safety instructions. It is safely adapted to most practical applications.
Kl: How long does the battery charge take?
The built-in lithium battery lasts several hours during intensive use. The exact time depends on the functions used. The battery can easily be recharged via the USB connector with the instruction specified.
Q: Is there a guarantee and what conditions?
The manufacturer's standard guarantee shall cover production defects within a specified period. Detailed conditions and on the delivery of the refund are laid down by the seller. Read the guarantee document for precautionary reasons.
The FNIRSI DSO-TC3 is an indispensable solution for anyone considering precise electronics diagnostics. This portable digital oscilloscope combines multiple tools into one compact device, saving you time, space, and money. An investment in quality and reliability from the TopSmart store.
Sources: Oscilloscope - Wikipedia | TopSmart store

















| Weight | 0.500 kg |
|---|---|
| Dimensions | 10 × 10 × 10 cm |
| Brand | FNIRSI |
| FNIRSI Model | DSO@-@ TC3 |
| Battery Included | Yes |
| DC Voltage | 10: 1 probe: 800Vpp (± 400V) |
| Origin | Mainland China |
| Operating Mode | Auto Range |
| High- related chemical | None |
| DIY Supplies | Electrical |
| AC Voltage | 10: 1 probe: 800Vpp (± 400V) |
| Display Type | Digital Display |
| AC Current | NO |
| Meeting Resistance Range | 0.01Ω – 50MΩ |
| Certification | THIS |
| DC Current | NO |
| Meeting Capacitance Range | 25pF – 100mF |
| Model Number | FNIRSI DSO@-@ TC3 |
| From Smart Device | No |
| Measure | 10uH – 1000uH |
| Dimensions | 10cm * 8cm * 3cm |
| Operating Temperature | 0 – 40 ℃ |
| Display Screen | 2.4 inch TFT |
| Supply volume | Regenerating fluid battery |
| Staging specifications | Type- C 5V |
| Bracket specifications | All- in- one foldable stand |
| Realtime | 10MSa / s |
| Analog Bandwidth | 500Khz |
| Intent resistance | 1MΩ |
| Cooling method | AC / DC |
| Test voltage range | 400V |
| Vertical Sensitivity (x1) | 10mV-10V |
| Horizontal time base range | 1us-10s |
| Trigger mode | Auto / Normal / Single mode |
| Trigger | Rising edge / Falling edge detection |
| Waveform Freeze | Yes |
| Automatic measurement | Yes |
| Diodes | Forward voltage drop <4.5V |
| Reglulated diode | 0.01 ~ 4.5V |
| MOSFET | JFET, IGBT, MOSFET |
| SCR | Turn-on voltage <5V, gate Pole trigger current <6mA |
| Capacitor | 5pF ~ 100mF |
| Resistor | 0.01Ω ~ 50MΩ |
| Inductor | 10uH ~ 1000uH |
| Battery | 0.1 ~ 4.5V |
| Input volume | 0 ~ 40V |
| DS18B20 | 0-85 |
| DHT11 | 0-60 ¢/ 5-95% |
| 0-60 ¢/ 5-95% | NEC Protocol infested code |
| Triangle | 1-10KHz / 0-3.3V / 50%, 1-10KHz / 0-3. 3U / 50% |
| Square | 1-100KHz / 3. 3U / 50% |
| Pulse wave | 1-100KHz / 3.3V / 0- 100% |
| Ramp | 1-10KHz / 0-3. 3U / 0- 100% |
| DC | 0-3. 3V |
V * * * h –
Everything works as it should, a useful item! High quality, nice assortment. Delivery 12 days by Express City. I recommend it!
j –
Everything excellent. Arrived within the estimated time. Everything perfect.
B * * * a –
As mentioned in the images, I am testing it and for the cost it fulfills its purpose, a very good tool, especially for ESR, recommended.
m * * * –
Arrived well and fast delivery.
I still need to work on the tester. What I wanted to measure worked well.
Thank you very much
Customer –
beautiful tool, well-made and very useful for us repair technicians, super company Fnirsi.
A * * * j –
Fnirsi is as usual at its peak. Very high-quality devices. Buy with confidence. The company and quality are excellent.
P * * * a –
Excellent purchase. Everything was perfect and arrived as expected.
Customer –
A good example, it performances its functions well.
Customer –
Thank you, good product, I recommend the eller.
Customer –
Good quality product
P * * * e –
Incredible combination of functionalities wuth extremely attractive price. An absolute must have for a hobbyist who wants to have a lab at hand in all circumstances. Congratulations for this creation.
Customer –
Super Tester!
Run
H * * * r –
The FNIRSI DSO-T3 is very handy and easy to use, self-explanatory! But during transistor measurements, other types have sometimes been displayed, such as Darlington transistors or thyristors, etc. However, for the price, it’s a nice gadget. The color display could be a bit larger (very small font).
Customer –
Fast delivery, product well protected. Quick check with a few components shows it works properly. I recommend it.
Customer –
Excellent. Arrived quick.
Customer –
% 1
Customer –
Excellent product, exported