The All-in-One Electronics Test Tool Professionals Trust
The TOOLTOP ET928 is built for engineers, technicians, and serious hobbyists who need reliable, portable test equipment without the bulk and cost of three separate instruments.
One-Click Oscilloscope
The ET928’s standout feature is its one-click auto waveform capture — no manual trigger adjustments needed. Connect your probe, press a button, and get a clean, stable waveform instantly. With 12MHz bandwidth and a 50Msps sampling rate, it handles everything from audio circuits to switching power supplies and microcontroller signals.
Full-Function Auto Multimeter
Switch seamlessly to DMM mode for comprehensive electrical measurements: AC/DC voltage (up to 1000V DC / 750V AC), current, resistance (up to 60MΩ), capacitance (10nF–100mF), frequency, duty cycle (0.1%–99.9%), diode testing, and continuity/buzzer. Store up to 100 measurement sets for later review.
Built-In Signal Generator
Generate sine, square, and triangular waveforms on demand to test circuit response, calibrate equipment, or simulate signal sources — all without a separate bench generator.
Designed for the Field
At just 153 × 75 × 30mm, the ET928 fits in a lab coat pocket or tool bag. Its lithium battery delivers ~6 hours of continuous use on a single USB charge, with a low-battery alert and auto-shutoff so you’re never caught off guard mid-job.
Crisp Color Display
The 2.4″ 320×240 color LCD with white backlight gives you clear visibility in any environment — from bright workshop floors to dimly lit equipment bays.












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