Quick Summary
The FNIRSI 2C53T is a 3-in-1 oscilloscope, multimeter and DDS signal generator. It combines a 2-channel oscilloscope with a 4.5-digit multimeter and a signal generator in one handheld unit, so the buyer can compare the three functions against the exact specifications needed for their work.
The main deciding points are the oscilloscope bandwidth and sampling rate, the multimeter measurement ranges, the signal generator output range, and the power and display format.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | 3-in-1 oscilloscope, multimeter and DDS signal generator. |
| Oscilloscope channels | 2 channels for comparing two signals on the same unit. |
| Oscilloscope bandwidth | 50 MHz, which is an important check for the signals you need to measure. |
| Sampling rate | 250 MSa/s, which affects how quickly the unit captures signal data. |
| Record depth | 1 Kpts. |
| Multimeter type | 4.5-digit 19,999-count multimeter. |
| Signal generator | Output frequency up to 50 kHz with 1 Hz steps and 13 waveforms. |
| Display | 2.8 inch LCD display. |
| Battery | Built-in 3000 mAh battery. |
| Charging | Type-C interface with 5 V/1 A charging support. |
What to Compare Before Buying
- Oscilloscope needs: Check the 50 MHz bandwidth, 250 MSa/s sampling rate and 1 Kpts record depth against the signals you plan to inspect.
- Multimeter ranges: Confirm the stated voltage, current, resistance and capacitance ranges match the measurements you need to make.
- Signal generator output: Compare the 50 kHz maximum output frequency, 1 Hz step size and 13 waveform options with your test requirements.
- Power and portability: The built-in 3000 mAh battery and Type-C charging support affect how the unit is used away from a bench.
What Is Included
The product is a single 3-in-1 handheld unit combining oscilloscope, multimeter and signal generator functions. Saved waveforms can be exported by connecting the unit to a PC via Type-C.
Before You Decide
Confirm that you want one compact test unit rather than separate instruments. Check the oscilloscope bandwidth, multimeter ranges, signal generator output and charging setup against the tasks you need to cover.





