FNIRSI 50MHz Handheld Scope Multimeter Signal Generator

Compact and powerful, the FNIRSI 50MHz Handheld Scope Multimeter Signal Generator combines an oscilloscope, multimeter, and signal generator into a portable device. Designed for on-the-go electronics work, it delivers reliable testing capabilities in a single tool with a generous feature set and a clear, easy-to-read display.

Key capabilities include dual-channel operation with a 50 MHz bandwidth per channel (10 MHz per channel effective bandwidth), wide measurement ranges, and waveform export options. It supports continuity tests, diode checks, live line detection, and the ability to save waveform screenshots or export waveform images for documentation or collaboration. The device is powered by a built-in 3000 mAh lithium battery and charges via USB Type-C, making it a practical companion for field service and bench work alike.

With a bright 320×240 pixel display, flexible triggering (AUTO/Normal/Single) and a time-base range from 50 ns to 10 s, you’ll capture and analyze signals precisely. It offers both DC and AC measurement capabilities, a range of voltage and current specifications, and a range of environmental and performance features designed for reliable operation in diverse testing scenarios.

Benefits & Tips

• Use the two-channel setup to compare signals side-by-side, or switch to single-channel mode for focused measurements on a single circuit.
• Export waveform images for reports and reference. Save waveform screenshots directly from the device for easy sharing with colleagues or clients.
• Leverage the wide operating range (voltage, current, amplitude, and frequency) to diagnose a broad spectrum of electronics, from low-voltage digital circuits to higher-voltage power electronics.

Product specifications

• Display: 320×240 pixels, display mode: YT/Scroll
• Channels: Dual channel (also supports single channel)
• Bandwidth: 10 MHz per channel (dual-channel capable; 50 MHz overall device capability as stated)
• Frequency range: 1 Hz – 2 MHz
• Amplitude: 0.1 – 3.3 V
• DC voltage range: 9.999 V – 750.0 V
• Diode test: Supported
• Continuity test: Supported
• Live line detection: Supported
Maximum measured voltage: ±400 V
• Impedance: 1 MΩ
• Resistance range: 999.9 Ω – 99.99 MΩ
• Display export: Export waveform images: Yes
• Storage depth: 32 KB
• Time base range: 50 ns – 10 s
• Trigger modes: AUTO, Normal, Single
• Trigger type: Rising edge, Falling edge
• Vertical sensitivity: 20 mV – 10 V
• Battery: 3000 mAh Li-ion (Battery Included)
• Charging port: USB Type-C (5V/1A)
• Waveform capture: Save waveform screenshot: Yes
• Model information: FNIRSI Model: 2C53; Origin: Mainland China
• Temperature range: -55 to 1300°C / -67 to 2372°F
• Storage depth: 32 KB
• Language support: English (where available)

Package includes:

• FNIRSI 50MHz Handheld Scope Multimeter Signal Generator

Warnings / Reminders

• Maximum measured voltage: ±400 V. Do not exceed this limit during measurements.
• Operate within specified ranges: DC voltage 9.999 V – 750.0 V; DC current 9999 μA – 9.999 A; Amplitude 0.1 – 3.3 V; Frequency 1 Hz – 2 MHz.
• Practice safe testing procedures when working with live circuits. Do not disassemble or modify the device. Use appropriate personal protective equipment as needed.

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