FNIRSI 3in1 Oscilloscope Multimeter Signal Generator 2C53T

Features:

All-in-One 3-in-1: Combines a 2-channel oscilloscope, a 4.5-digit 20000-count multimeter, and a signal generator in one handheld unit.
Oscilloscope Power: Delivers 50MHz bandwidth, 250MSa/s sampling, 1Kpts record depth, up to 400V max voltage, plus math ops, cursor measurement, persistence, and XY mode.
Generator + Waveforms: Outputs up to 50kHz with 1Hz steps and supports 13 waveform types for quick signal injection and checks.
Save & Share: One-click waveform/image saving with on-screen comparison, and Type-C PC transfer, backed by a 2.8" LCD and 3000mAh battery (up to ~6h standby).

Basic parameters

• Display: 2.8" HD color screen, 320×240 
• Charging: USB Type-C (5V/1A) 
• Battery: 3000mAh Li-ion 
• Standby time: Up to 6h (lab theoretical max) 
• Functions: Oscilloscope + Signal Generator + Multimeter 
• Language: Chinese / English 
• Size: 167 × 89 × 35 mm 
• Weight: 300 g 

Oscilloscope parameters

• Channels: Dual channel 
• Sample rate: 250 MS/s 
• Analog bandwidth: 50 MHz 
• Record length (storage depth): 1 Kpts 
• Input impedance: 1 MΩ 
• Time base range: 10 ns – 20 s 
• Vertical sensitivity: 10 mV/div – 10 V/div (×1) 
• Max measured voltage: ±400 V 
• Trigger: AUTO / Normal / Single, edge trigger (rising/falling) 
• Display modes: Y-T / Rolling / X-Y 
• Coupling: AC/DC 
• Persistence: OFF / 500 ms / 1 s / ∞ 
• Math: 8 basic operations + FFT 
• Screenshot save / image export / cursor measurement / infinite afterglow: Supported 

Function signal generator parameters

• Waveforms: 13 types (sine, square, sawtooth, half/full wave, steps, exp rise/fall, DC, etc.) 
• Frequency: 0–50 kHz 
• Amplitude: 0–3 V 
• Duty cycle: 0–100% 

Multimeter parameters

• DC voltage ranges: 1.9999V / 19.999V / 199.99V / 1000V 
• AC voltage ranges: 1.9999V / 19.999V / 199.99V / 750.0V 
• DC current ranges: 19.999 mA / 199.99 mA / 1.9999 A / 9.999 A 
• AC current ranges: 19.999 mA / 199.99 mA / 1.9999 A / 9.999 A 
• Resistance ranges: 199.99Ω / 1.9999kΩ / 19.999kΩ / 199.99kΩ / 1.9999MΩ / 19.999MΩ 
• Capacitance ranges: 99.99 nF → 99.99 mF (multiple steps listed on page) 
• Temperature: −55 to 1300°C (−67 to 2372°F) 
• Diode test: Yes 
• Continuity test: Yes