FNIRSI
FNIRSI DSO-TC4 3-in-1 Handheld Oscilloscope 10MHz Bandwidth 48MS/s Sampling
Bottom line: The FNIRSI DSO-TC4 3-in-1 Handheld Oscilloscope 10MHz Bandwidth 48MS/s is a specs-and-price decision rather than a crowd-consensus one in the tools & maintenance category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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Pros & Cons
Pros
- ✓ Backed by FNIRSI's warranty and support channels
Cons
- ✗ Check battery runtime and RPM/CFM specs match your case size and cleaning frequency
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored FNIRSI DSO-TC4 3-in-1 Handheld Oscilloscope 10MHz Bandwidth 48MS/s… using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. FNIRSI's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 【3 in 1】FNIRSI DSO-TC4 oscilloscope transistor tester DDS signal generator, 10 MHz bandwidth, 48 MSa/s sampling rate, max voltage 400 V, vertical sensitivity 10 mV/div~10 V/div, can accurately capture and analyze signal, waveform image storage and export
- 【Transistor Tester】FNIRSI DSO-TC4 can test diodes, triodes, field effect transistors, capacitors, resistors and other components, automatically identify pins and parameters, support NEC IR decoding. Ideal for debugging and repairing remote control devices
- 【DDS Signal Generator】It has 13 waveform outputs, frequency range 0~50KHz, output voltage adjustable 3V, suitable for various signal simulation tests
- 【Intuitive & Portable】The handheld digital oscilloscope uses a 2.8" HD TFT screen with adjustable brightness for different lighting environments. It features a 1500 mAh lithium battery with auto shutdown (15/30/60 mins) for energy saving
- 【Rich Functions】The oscilloscope transistor tester supports voltage measurement, continuity test, DS18B20 temperature sensor, DHT11 sensor, automatic calibration, offering convenient testing support for development and maintenance
Full Specifications
| Brand | FNIRSI |
|---|---|
| Model | DSO-TC4 |
| Style | Compact |
| Style Name | Compact |
| Unit Count | 1 Count |
| Part Number | DSO |
| Connectivity | USB-C |
| Power Source | Battery Powered |
| Item Dimensions | 5.57 x 3.54 x 1.06 inches |
| Compatible Devices | Electronic components (diodes, triodes, FETs, capacitors, resistors), devices with NEC IR protocols, testing and development devices |
| Included Components | Oscilloscope*1, P6100 Probe*1, Adapter*1, Alligator Clip Probe*1, Test Hook*3 |
| Item dimensions L x W x H | 5.57 x 3.54 x 1.06 inches |
| Full listing title | FNIRSI DSO-TC4 3-in-1 Handheld Oscilloscope 10MHz Bandwidth 48MS/s Sampling | Transistor Tester DDS Signal Generator, Automatic Component Test, 2.8" TFT, USB-C Rechargeable, for Electronics Repair & DIY |
Ready to buy?
FNIRSI DSO-TC4 3-in-1 Handheld Oscilloscope 10MHz Bandwidth 48MS/s Sampling | Transistor Tester DDS Signal Generator, Automatic Component Test, 2.8" TFT, USB-C Rechargeable, for Electronics Repair & DIY is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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