The Zoyi ZT-703S 3-in-1 Oscilloscope Multimeter is the ultimate handheld laboratory for engineers and hobbyists. It seamlessly integrates a 50MHz dual-channel oscilloscope, a 25,000-count high-precision multimeter, and a built-in signal generator. Featuring a vivid 3.5-inch IPS color display and a rechargeable 3400mAh battery.
Triple-in-One Functionality: Effortlessly switch between a full-featured oscilloscope, a professional digital multimeter, and a multi-waveform signal generator with a single button.
Advanced Oscilloscope Performance: Offers a 50MHz bandwidth and a high-speed 280MSa/s real-time sampling rate. The dual-channel input allows for simultaneous signal comparison and troubleshooting.
Ultra-High Precision Multimeter: Provides a 25,000-count resolution with True RMS accuracy. Measure DC/AC voltage (up to 1000V/750V), current, resistance, capacitance, and frequency with laboratory-grade precision.
Built-in Signal Generator: Output sine, square, triangle, and sawtooth waves for circuit testing, probe calibration, and signal simulation.
IPS Color Display: The 3.5-inch IPS screen provides a full viewing angle with vibrant colours, ensuring waveforms and readings are clearly visible from any direction.
Data Export & Screenshots: Connect to a PC via USB-C to export stored data or transfer screenshots for secondary analysis and reporting.
Rugged & Portable: Encased in a durable, slightly rubberized housing with a folding stand. Powered by a long-lasting rechargeable 18650 lithium battery.
| Category | Specification | Details |
| General | Display | 3.5" IPS Full Viewing Angle Color Screen |
| Battery | 3400mAh 18650 Lithium (Rechargeable) | |
| Charging Port | USB-C (5V/2A) | |
| Oscilloscope | Bandwidth | 50MHz (Dual Channel) |
| Sampling Rate | 280MSa/s (Real-time) | |
| Trigger Modes | Auto / Normal / Single | |
| Storage Depth | 128K | |
| Multimeter | Max Counts | 25,000 Counts (True RMS) |
| DC Voltage | Up to 1000V (Accuracy ±0.05%) | |
| AC Voltage | Up to 750V (Accuracy ±0.5%) | |
| Resistance | Up to 250MΩ | |
| Capacitance | Up to 100mF | |
| Signal Gen | Waveforms | Sine, Square, Triangle, Sawtooth, Pulse |


1 x Zoyi ZT-703S Main Unit
2 x Oscilloscope Probes (with accessories)
1 x Pair of Multimeter Test Leads
1 x USB-C Charging/Data Cable
1 x Protective Carrying Pouch
1 x User Manual
