FNIRSI DSO-TC4 3-in-1 10MHz Oscilloscope Digital Screen Multimeter s a multifuncitional, portable, and highly practical device that combines a 10MHz Oscilloscope, Digital Multimeter, and Signal Generator in one compact unit. With a 2.8-inch TFT color display, rechargeable battery, and intelligent component detection, it is an ideal tool for electronics maintenance, repair, and R&D applications.
Key Features
Oscilloscope Function – 10MHz analog bandwidth, 48MSa/s real-time sampling rate, AC/DC coupling, and multiple trigger modes.
Signal Generator – 13 waveforms, 0–50kHz frequency range, 0–3V amplitude, and adjustable duty cycle for flexible testing.
Component Tester – Automatically detects and analyzes transistors, diodes, MOSFETs, IGBTs, SCRs, resistors, capacitors, inductors, and more.
Waveform Storage – Supports screenshot saving and browsing for convenient data analysis.
Rechargeable Battery – Built-in 1500mAh lithium battery with up to 4 hours of standby time.
Portable & Lightweight – Compact design (186g) makes it easy to carry for fieldwork or lab use.
Specifications
Model: DSO-TC4
Screen: 2.8-inch TFT color display (adjustable backlight)
Power Supply: Type-C 5V/1A
Battery: 3.7V 1500mAh rechargeable lithium
Size: 90 × 142 × 27.5 mm
Weight: 186 g
Oscilloscope Parameters
Sampling Rate: 48MSa/s
Bandwidth: 10MHz
Input Impedance: 1MΩ
Coupling: AC/DC
Voltage Range: 80Vpp (1:1 probe), 800Vpp (10:1 probe)
Vertical Sensitivity: 10mV/div ~ 10V/div
Time Base: 50ns ~ 20s/div
Trigger: Rising/Falling edge (adjustable)
Auto Measurement: Vmax, Vmin, Vavg, Vrms, frequency, period, duty cycle
Transistor Tester Parameters
Diodes: Forward voltage drop < 5V
Zener Diodes: 0–32V
SCR / Triac: Trigger voltage < 5V, trigger current < 6mA
Resistance: 0.01Ω ~ 50MΩ
Capacitance: 25pF ~ 1000µF
Inductance: 10µH ~ 1000µH
Supports DS18B20 (temperature) & DHT11 (temperature & humidity) sensors
Signal Generator Parameters
Waveform Types: 13 kinds
Frequency Range: 0–50kHz
Duty Cycle: 0–100%
Output Amplitude: 0–3V adjustable
Package Includes
1 × FNIRSI DSO-TC4 3-in-1 Oscilloscope
1 × Probe Set
1 × Type-C Charging Cable
1 × User Manual