FNIRSI® 2C23T Handheld Dual Channel 3-In-1 10MHz 50MS/S Oscilloscope Multimeter DDS Function Generator
The FNIRSI 2C23T is a multifunction handheld electronic testing instrument designed for engineers, maintenance technicians, electronics students, and DIY developers. This compact device integrates a dual-channel digital oscilloscope, a true RMS digital multimeter, and a DDS function signal generator into a single portable platform, providing versatile measurement and waveform analysis capabilities suitable for laboratory and field applications. The device adopts FPGA + MCU + ADC hardware architecture combined with built-in high-voltage protection for reliable and stable measurement performance.
Features:
- 3-IN-1 multifunction design combining oscilloscope, multimeter, and DDS signal generator.
- Dual-channel handheld digital oscilloscope.
- 10MHz analog bandwidth on each channel.
- Real-time sampling rate up to 50MSa/s.
- Built-in 10000-count true RMS multimeter.
- DDS signal generator with seven waveform outputs.
- Maximum signal generator frequency up to 2MHz.
- Supports waveform screenshot saving and export.
- Supports AC/DC coupling modes.
- Trigger modes include AUTO, Normal, and Single.
Specifications:
| Parameter | Value |
|---|---|
| Brand | FNIRSI |
| Model | 2C23T |
| Display Screen | 2.8inch HD color screen |
| Resolution Ratio | 320*240 |
| Charging Specifications | TYPE-C (5V/1A) |
| Battery | 3000mAh lithium battery |
| Support Functions | Oscilloscope, Signal generator, Multimeter |
| Language | English |
| Standby Time | 6h (laboratory theoretical maximum) |
| Product Volume | 167x89x35mm |
| Channel | Dual channel |
| Sample Rate | 50M |
| Analog Bandwidth | 10M(dual channel independent 10M) |
| Storage Depth | 32kb |
| Impedance | 1MΩ |
| Time Base Range | 50ns-10s |
| Vertical Sensitivity | 20mV/div – 10V/div (X1) |
| Maximum Measured Voltage | ±400V |
| Trigger Mode | AUTO / Normal / Single |
| Trigger Type | Rising edge, Falling edge |
| Display Mode | YT/Scroll |
| Coupling Method | AC/DC |
| Save Waveform Screenshot | Yes |
| Export Waveform Images | Yes |
| DC Voltage Range | 9.999V / 99.99V / 999.9V |
| DC Voltage Accuracy | ±(0.5%+3) |
| AC Voltage Range | 9.999V / 99.99V / 750.0V |
| AC Voltage Accuracy | ±(1%+3) |
| DC Current Range | 9999μA / 99.99mA / 999.9mA / 9.999A |
| DC Current Accuracy | ±(1.2%+3) |
| AC Current Range | 9999μA / 99.99mA / 999.9mA / 9.999A |
| AC Current Accuracy | ±(1.5%+3) |
| Resistance Range ① | 9.999MΩ / 999.9KΩ / 99.99KΩ / 9.999KΩ / 999.9Ω |
| Resistance Accuracy ① | ±(0.5%+3) |
| Resistance Range ② | 99.99MΩ |
| Resistance Accuracy ② | ±(1.5%+3) |
| Capacitance Range ① | 999.9μF / 99.99μF / 9.999μF / 999.9nF / 99.99nF / 9.999nF |
| Capacitance Accuracy ① | ±(2.0%+5) |
| Capacitance Range ② | 9.99mF / 99.99mF |
| Capacitance Accuracy ② | ±(5.0%+20) |
| Temperature Range | (-55~1300°C) / (-67~2372°F) |
| Temperature Accuracy | ±(2.5%+5) |
| Diode | Yes |
| Continuity Test | Yes |
| Live Line Detection | Yes |
| Signal Generator Channel | Single channel |
| Signal Generator Frequency | 1Hz-2MHz |
| Signal Generator Amplitude | 0.1-3.3V |
| Output Waveform | Sine wave, square wave, triangular wave, full wave, half wave, noise wave, DC |
| Output Duty Cycle | 0-100% |
Configuration:

Applications
- Electronic circuit debugging and troubleshooting.
- Portable waveform signal analysis.
- Embedded systems development.
- Educational laboratory experiments.
- Electronic maintenance and repair.
- Sensor and power supply testing.
- Signal generation and waveform simulation.
- DIY electronics and maker projects.
- Industrial maintenance applications.
- Field measurement and testing operations.
Package Include:
- 1x FNIRSI 2C23T Digital Oscilloscope.
- 1x P6100 Oscilloscope Probe.
- 1x 10X Oscilloscope Probe.
- 1x set Crocodile Clip Probe.
- 1x set Multimeter Probe Set.
- 1x USB Type-C Charging Cable.
- 1x User Manual.
- 1x Packaging Box.



















