DESCRIPTION

The ZOYI ZT-703 is a versatile 3-in-1 electrical testing instrument that combines a digital multimeter, two-channel oscilloscope, and signal generator in one compact handheld device. Designed for electricians, electronics technicians, automotive diagnosticians, repair professionals, engineers, and advanced DIY users, it helps eliminate the need to carry several separate testing instruments.

With dual-channel waveform analysis, fast real-time sampling, comprehensive multimeter functions, and a built-in signal generator, the ZT-703 is well suited for troubleshooting electrical circuits, examining electronic signals, testing sensors, diagnosing automotive systems, checking power supplies, and performing general electronics repair. The manufacturer lists the oscilloscope with up to 280 MSa/s real-time sampling and a dual-channel design.

3-in-1 Testing Solution

The ZT-703 brings three essential instruments together:

• Digital Multimeter – Measure AC/DC voltage, AC/DC current, resistance, capacitance, frequency, diode and continuity.
• Two-Channel Oscilloscope – View and compare two electrical waveforms simultaneously.
• Signal Generator – Produce test waveforms for circuit testing and troubleshooting.

This integrated design makes it easier to move from basic electrical measurements to advanced waveform analysis without changing equipment.

Dual-Channel Digital Oscilloscope

The oscilloscope section provides two independent channels for viewing signals simultaneously. Dual-channel operation is particularly useful when comparing an input and output signal, examining sensor signals, checking timing relationships, or troubleshooting electronic circuits.

Depending on configuration, published specifications list up to 50 MHz bandwidth, 280 MSa/s real-time sampling, adjustable time-base settings, multiple trigger modes, and waveform measurement functions.

Oscilloscope Features

• Two-channel waveform display
• Up to 50 MHz bandwidth
• Up to 280 MSa/s real-time sampling
• AC/DC input coupling
• Auto, Normal and Single trigger modes
• Rising- and falling-edge triggering
• Adjustable vertical and horizontal scales
• Waveform persistence/afterglow functions
• Automatic waveform measurements
• Period and frequency measurement
• Maximum and minimum value measurement
• Peak-to-peak measurement
• RMS measurement
• Duty-cycle measurement
• Waveform storage and screenshot functions
• YT, XY and Roll display modes

Built-In Signal Generator

The integrated signal generator provides convenient test-signal output without requiring a separate generator. Available waveform types include sine, square, sawtooth, half-wave and full-wave signals, making the tool useful for basic circuit response testing and troubleshooting.

Full-Function Digital Multimeter

Switch to multimeter mode for everyday electrical testing. The ZT-703 family provides comprehensive measurement capabilities including:

• DC voltage
• AC voltage
• DC current
• AC current
• Resistance
• Capacitance
• Frequency
• Diode testing
• Continuity testing

Published ZT-703S specifications list measurements up to 1000V DC, 750V AC, 10A AC/DC, resistance up to 250MΩ, capacitance up to 99.99mF, and frequency up to 999.9kHz, depending on the specific version/configuration.

Portable Handheld Design

The compact handheld form factor makes the ZT-703 practical for field service, workshops, electrical panels, laboratories, automotive work, and home electronics projects. Instead of carrying a bench oscilloscope, multimeter and signal generator separately, users can have multiple testing functions available in one portable instrument.

The ZT-703S documentation lists a rechargeable battery, USB-C charging, and a lightweight ABS/TPE housing, with published dimensions around 177 × 89 × 40 mm and weight around 380 g for that configuration.

Ideal for a Wide Range of Applications

The ZOYI ZT-703 can be used for:

• Electrical troubleshooting
• Electronics repair
• Automotive diagnostics
• Sensor testing
• Power-supply testing
• PCB troubleshooting
• Motor and control-system diagnostics
• Signal and waveform analysis
• Low-voltage system testing
• DIY electronics projects
• Industrial equipment maintenance
• Technician training and education

SPECIFICATIONS

Origin: Mainland China