The ZOYI ZT-703S is a versatile 3-in-1 device that combines the functionalities of an oscilloscope, multimeter, and signal generator. Its compact design and comprehensive features make it suitable for both professionals and electronics enthusiasts. Below are the detailed specifications:

General Specifications:

• 
  

  Display: 3.5-inch IPS full-view color screen

  
  


• 
  

  Ranging: Auto/Manual

  
  


• 
  

  Material: ABS+TP

  
  


• 
  

  Update Rate: 3 times/second

  
  


• 
  

  True RMS: Yes​

  
  


• 
  

  Data Hold: Yes​

  
  


• 
  

  Backlight: Yes​

  
  


• 
  

  Low Battery Indication: Yes​

  
  


• 
  

  Auto Power Off: Yes​

  
  


• 
  

  Dimensions: 177 × 89 × 40 mm​

  
  


• 
  

  Weight: Approximately 345 g (excluding battery)​

  
  


• 
  

  Battery Type: 18650 Lithium Battery

  
  

• 
  

  Bandwidth: 50 MHz​

  
  


• 
  

  Sampling Method: Real-time sampling​

  
  


• 
  

  Real-time Sample Rate: Up to 280 MSa/s

  
  


• 
  

  Channels: 2​

  
  


• 
  

  Input Coupling: AC/DC

  
  


• 
  

  Input Resistance: 1 MΩ @ 16 p

  
  


• 
  

  Probe Attenuation: X1, X10​

  
  


• 
  

  Max Input Voltage: 300 V (DC + AC peak)​Sample Rate Range: 1.5 Sa/s – 280 MSa/s

  
  


• 
  

  Waveform Interpolation: (sinx)/x​

  
  


• 
  

  Sweep Speed Range: 10 ns/div – 20 s/div​

  
  


• 
  

  Time Base Accuracy: 20 ppm​Record Length: Max 128 Kbytes​

  
  


• 
  

  Sensitivity: 20 mV/div – 10 V/div​

  
  

Multimeter Specifications:

• 
  

  Display Count: 25,000 counts

  
  


• 
  

  DC Voltage: Up to 1000 V​

  
  


• 
  

  AC Voltage: Up to 750 V​

  
  


• 
  

  DC Current: Up to 10 A​

  
  


• 
  

  AC Current: Up to 10 A​

  
  


• 
  

  Resistance: Up to 250 MΩ

  
  


• 
  

  Capacitance: Up to 100 mF​

  
  


• 
  

  Frequency: Up to 100 kHz​

  
  


• 
  

  Diode Test: Yes​

  
  


• 
  

  Continuity Test: Yes

  
  

Signal Generator Specifications:

• 
  

  Waveforms: Sine, Square, Triangle, Sawtooth​

  
  


• 
  

  Frequency Range: Up to 100 kHz​

  
  


• 
  

  Amplitude: Adjustable​

  
  

Safety and Certifications:

• 
  

  Safety Ratings: CAT III 1000 V (Multimeter mode), CAT II 600 V (Oscilloscope mode)​

  
  


• 
  

  Fuses: Dual ceramic fuses (600 mA and 10 A)​

  
  


• 
  

  Certifications: CE compliant

  
  

For a comprehensive overview and user manual, you can refer to the official ZOYI product page and the user manual. ​

Additionally, for a visual review and demonstration of the ZOYI ZT-703S, you might find the following video helpful: