Description

The FNIRSI DSO-TC4 is a compact 3-in-1 handheld instrument that combines a 10MHz digital oscilloscope, an automatic transistor and component tester, and a 13-waveform signal generator in a single battery-powered unit. All three functions are accessed from one device without swapping probes or switching between separate instruments — making it ideal for electronics repair benches and field diagnostic work where bench space and carried equipment are both limited. With full-range burnout protection, an included P6100 high-voltage probe rated to 400Vpp, and automatic component identification that maps pin arrangement without prior knowledge of orientation, the DSO-TC4 is engineered for real-world repair scenarios. For electronics technicians, hobbyists, and workshop owners in Karachi and across Pakistan dealing with inverter boards, motor drives, and consumer electronics, it delivers three essential tools at a fraction of the cost of separate instruments.

Why Choose the FNIRSI DSO-TC4?

In Pakistan’s electronics repair trade — where inverter failures, motor drive faults, and pulled SMD components are everyday work — having oscilloscope and component identification capability in one pocket-sized device saves both time and bench space. The DSO-TC4’s automatic component recognition covers a wider range than most standalone transistor testers at this price, including IGBT identification with Vgs and drain current parameters, Zener breakdown voltage, and SCR gate trigger voltage. The included P6100 high-voltage probe extends the oscilloscope’s safe input range to 400Vpp, making it usable for mains-frequency diagnostics that most basic handheld scopes cannot handle. At roughly 186g with a 4-hour battery and Type-C charging, it carries easily to any job site in Karachi’s industrial and commercial repair sector.

FEATURES

• 3-in-1 instrument: 10MHz digital oscilloscope + automatic component tester + 13-waveform signal generator
• 48MSa/s real-time sampling rate with 10MHz analog bandwidth
• Time base range: 50ns to 20s per division; vertical sensitivity: 10mV/div to 10V/div
• Input voltage protection: 80Vpp with 1:1 probe; 800Vpp (+400V) with included 10:1 P6100 high-voltage probe
• Trigger modes: Auto / Normal / Single; rising and falling edge, adjustable trigger level
• Auto measurement: Vmax, Vmin, Vavg, Vrms, Vpp, frequency, cycle, duty cycle
• Waveform freeze (HOLD) and on-device screenshot save for data capture and review
• Automatic component identification — determines component type and pin arrangement without prior orientation knowledge
• Transistor: hfe, Ube, Ic/Ie, Iceo, Ices, protection diode forward voltage
• Diode: forward voltage drop, junction capacitance, reverse leakage current
• Zener diode: reverse breakdown voltage 0.01V to 32V
• JFET: gate capacitance, drain current; MOSFET: threshold voltage, gate capacitance, Rds; IGBT: drain current, protection diode forward voltage
• SCR: unidirectional trigger voltage below 5V; bidirectional trigger current below 6mA
• Capacitor: 25pF to 100mF with capacitance value and loss factor (Vloss)
• Resistor: 0.01 ohm to 50 Mohm; Inductor: 10 uH to 1000 uH with DC resistance
• Sensor identification: DS18B20 temperature sensor and DHT11 temperature/humidity sensor pin mapping
• Signal generator: 13 waveform types, 0–50kHz, amplitude 0.1V–3.0V, duty cycle 0–100% adjustable
• Built-in 3.7V 1500mAh battery, approximately 4 hours operating time; Type-C (5V/1A) charging
• 2.8-inch TFT color display with adjustable backlight; 8 interface languages
• Full-range burnout protection across all operating modes

SPECIFICATIONS

Basic Parameters:

• Model: DSO-TC4
• Display: 2.8-inch TFT color screen, adjustable backlight
• Battery: 3.7V / 1500mAh (~4 hours)
• Charging: Type-C (5V/1A)
• Dimensions: 90 × 142 × 27.5mm
• Weight: 186g
• Languages: English, Chinese, German, Portuguese, Japanese, Spanish, Korean, Russian

Oscilloscope:

• Sampling rate: 48MSa/s
• Bandwidth: 10MHz
• Input impedance: 1 Mohm
• Coupling: AC/DC
• Vertical sensitivity: 10mV/div to 10V/div
• Time base: 50ns to 20s
• Test voltage (1:1): 80Vpp (+40V)
• Test voltage (10:1): 800Vpp (+400V)
• Trigger: Auto / Normal / Single; Rising/Falling edge

Component Tester:

• Transistors (NPN/PNP): hfe, Ube, Ic/Ie, Iceo, Ices, Uf
• Diodes: forward voltage drop, junction capacitance, reverse leakage current
• Zener diodes: 0.01V to 32V reverse breakdown voltage
• JFET / MOSFET / IGBT: threshold voltage, gate capacitance, Rds, drain current, Uf
• SCR (unidirectional): trigger voltage below 5V
• SCR (bidirectional): trigger current below 6mA
• Capacitors: 25pF to 100mF (value + Vloss)
• Resistors: 0.01 ohm to 50 Mohm
• Inductors: 10 uH to 1000 uH (value + DC resistance)
• Sensors: DS18B20, DHT11 (pin mapping)

Signal Generator:

• Waveforms: 13 types
• Frequency: 0 to 50kHz
• Amplitude: 0.1V to 3.0V
• Duty cycle: 0 to 100% adjustable (square and sawtooth)

Operating temperature: -5°C to 40°C
Storage humidity: Up to 80% relative humidity
Warranty: 2 years (direct purchase via fnirsi.com); 30-day return and refund guarantee
Includes: DSO-TC4 host, P6100 high-voltage probe, adapter, Type-C charging cable, 3 test hooks, alligator clip, user manual