FNIRSI 2C23T Handheld Dual Channel 3-in-1 Oscilloscope & Multimeter & DDS Signal Generator

The FNIRSI 2C23T is a compact 3-in-1 multifunction electronic test instrument that combines a dual channel digital oscilloscope, true RMS multimeter, and DDS signal generator in a single portable device. It is designed for electronics diagnostics, circuit debugging, and educational use.

Equipped with a 2.8″ HD color display, an FPGA + MCU + ADC hardware architecture, and a built in 3000mAh rechargeable battery, the device delivers reliable waveform analysis, electrical measurements, and signal generation in a handheld form factor.

Its oscilloscope supports 10MHz bandwidth and 50MS/s sampling, while the integrated multimeter provides 10,000 count true RMS measurements for voltage, current, resistance, and more. The built in DDS function generator can output multiple waveform types up to 2MHz, making it a versatile tool for technicians, engineers, and hobbyists.

Highlights:

• 3-in-1 device: Oscilloscope, multimeter, and signal generator.
  
• Dual channel oscilloscope with 10MHz bandwidth.
  
• 50MS/s real time sampling rate for signal capture.
  
• True RMS digital multimeter (10,000 counts).
  
• DDS signal generator up to 2MHz.
  
• 2.8″ HD color display (320×240) for clear waveform visualization.
  
• Waveform screenshot and storage function.
  
• USB C connection for data export and charging.
  
• Built in 3000mAh rechargeable battery.
  
• High voltage protection up to ±400V measurement. 

Specifications:

General

• Model: FNIRSI 2C23T.
  
• Display: 2.8″ HD color LCD (320×240).
  
• Battery: 3000mAh rechargeable lithium battery.
  
• Charging: USB C (5V/1A).
  
• Operating Time: up to ~6 hours standby.
  
• Dimensions: ~167×89×35mm.
  
• Weight: ~650g.

Oscilloscope

• Channels: 2.
  
• Bandwidth: 10MHz.
  
• Sampling Rate: 50MS/s.
  
• Storage Depth: 32kB.
  
• Input Impedance: 1MΩ.
  
• Time Base Range: 50ns/div - 10s/div.
  
• Vertical Sensitivity: 20mV/div - 10V/div.
  
• Max Measured Voltage: ±400V.
  
• Trigger Modes: Auto / Normal / Single.

Multimeter

• Display Count: 10,000 counts (True RMS).
  
• DC Voltage: up to 999.9V.
  
• AC Voltage: up to 750V.
  
• DC / AC Current: up to 9.999A.
  
• Resistance: up to 99.99MΩ.
  
• Capacitance: up to 99.99mF.
  
• Temperature Measurement: -55°C to 1300°C.
  
• Diode & Continuity Test: Supported.

Signal Generator

• Channel: 1.
  
• Frequency Range: 1Hz - 2MHz.
  
• Output Amplitude: 0.1-3.3V adjustable.
  
• Duty Cycle: 0-100%.
  
• Waveforms: Sine, Square, Triangle, Full wave, Half wave, Noise, DC.

Ideal For:

• 🔧 Electronics repair and circuit troubleshooting.
  
• 📡 Signal waveform testing and debugging.
  
• 📟 Embedded systems and microcontroller development.
  
• 🎓 Electronics education and student laboratories.
  
• 🧰 Portable field diagnostics and maintenance.
  
• ⚙️ DIY electronics and maker projects.