FNIRSI® 2C23T Handheld Dual Channel 3-in-1 10MHz 50MS/s Oscilloscope + Multimeter + DDS Function Generator

Highlights

1. Oscilloscope Mode: Dual-channel handheld oscilloscope with 10 MHz bandwidth, 50 MSa/s sampling rate, 32 kb record depth, automatic measurement, max voltage of 400 V, vertical sensitivity 200 mv/div-10 v/div, and waveform storage/export.
2. Multimeter Mode: 4-digit 10,000 Counts. AC Voltage: 0-750 V, DC Voltage: 0-999.9 V, DC/AC Current: 0-9.999 A, Resistance: 0-99.99 MΩ, Capacitance: 0-99.99 mF, Continuity Measurement. Multi-function meter for professionals, schools and hobbyists.
3. Signal Generator: The maximum waveform output frequency can reach 2 MHz and a step of 1 Hz, and can output seven waveforms including sine, square, triangle, full, half, noise, and DC.
4. Save Function: One-click save, screening function. You can upload the saved image by connecting to PC via Type-C. You can easily compare the waveforms by displaying the reference waveform and the measured waveform on the same screen.
5. Excellent Design: The Oscilloscope adopts FPGA + MCU + ADC hardware architecture, built-in high-voltage protection module, adopts 2.8 inch LCD display, built-in 3000mAh Li-ion battery, standby time up to 6H, Type-C interface supports 5V/1A charging.

Introduction 

The FNIRSI-2C23T is a versatile 3-in-1 dual-channel digital oscilloscope designed for maintenance and development work. It combines an oscilloscope, multimeter, and signal generator in one device. The oscilloscope features FPGA+MCU+ADC architecture, 50 MS/s sampling rate, 10 MHz bandwidth, and high-voltage protection, supporting peak voltage measurements up to ±400V. It allows saving and analyzing waveform screenshots.

The multimeter offers 4-digit, 10,000-point true RMS measurements for AC/DC voltage, current, resistance, capacitance, diode, and continuity. The built-in DDS signal generator outputs 7 signal types, with adjustable frequency (up to 2 MHz), amplitude, and duty cycle.

The device has a 2.8" high-definition LCD (320x240 resolution) and a 3000mAh rechargeable battery with up to 6 hours of standby time, offering compact size and portability for a wide range of users including professionals, students, and hobbyists.

Device Parameters

• Brand: FNIRSI
• Model: 2C23T
• Display Screen: 2.8 inch 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: 6 hours (laboratory theoretical maximum)
• Product Volume: 167 × 89 × 35 mm
• Weight: 300 g

Oscilloscope Parameters

• Channel: Dual channel
• Sample Rate: 50 MSa/s
• Analog Bandwidth: 10 MHz (dual channel independent 10 MHz)
• Storage Depth: 32 KB
• Impedance: 1 MΩ
• Time Base Range: 50 ns – 10 s
• Vertical Sensitivity: 20 mV/div – 10 V/div (X1)
• Maximum Measured Voltage: ±400 V
• 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

Multimeter Parameters

• DC Voltage
  • Range: 9.999V / 99.99V / 999.9V
  • Accuracy: ±(0.5% + 3)
• AC Voltage
  • Range: 9.999V / 99.99V / 750.0V
  • Accuracy: ±(1% + 3)
• DC Current
  • Range: 9999μA / 99.99mA / 999.9mA / 9.999A
  • Accuracy: ±(1.2% + 3)
• AC Current
  • Range: 9999μA / 99.99mA / 999.9mA / 9.999A
  • Accuracy: ±(1.5% + 3)
• Resistance
  • ① Range: 9.999MΩ / 999.9KΩ / 99.99KΩ / 9.999KΩ / 999.9Ω
    • Accuracy: ±(0.5% + 3)
  • ② Range: 99.99MΩ
    • Accuracy: ±(1.5% + 3)
• Capacitance
  • ① Range: 999.9μF / 99.99μF / 9.999μF / 999.9nF / 99.99nF / 9.999nF
    • Accuracy: ±(2.0% + 5)
  • ② Range: 9.99mF / 99.99mF
    • Accuracy: ±(5.0% + 20)
• Temperature
  • Range: (-55 ~ 1300°C) / (-67 ~ 2372°F)
  • Accuracy: ±(2.5% + 5)
• Diode Test: Yes
• Continuity Test: Yes
• Live Line Detection: Yes

Signal Generator Parameters

• Channel: Single channel
• Frequency: 1 Hz – 2 MHz
• Amplitude: 0.1 – 3.3 V
• Output Waveform:
  • Sine wave
  • Square wave
  • Triangular wave
  • Full wave
  • Half wave
  • Noise wave
  • DC output
• Duty Cycle: 0 – 100%