Gaqqee MO-81 7-in-1 Optocoupler Component Tester USB-C

Rechargeable Version

$46.33

$46.33 $56.89

Gaqqee MO-81 7-in-1 Optocoupler Component Tester USB-C

$46.33

$46.33 $56.89

Gaqqee MO-81 – 7-in-1 Multifunction Optocoupler & Electronic Component Tester

Meet the Gaqqee MO-81 — the compact, all-in-one electronic component tester built for technicians, electronics hobbyists, and DIY repair enthusiasts. With seven integrated test functions packed into a slim 163 × 21 × 13 mm form factor, the MO-81 lets you quickly verify the status of optocouplers, transistors, IGBTs, thyristors, and more — all with a simple plug-and-play operation. No probes, no external power supply, no hassle.

Key Features

7-in-1 Testing Capability: Supports optocouplers, IGBTs, thyristors, TL431, NPN & PNP transistors, NMOS & PMOS transistors — one device covers a wide range of electronic components.
Instant Plug-and-Play: Simply insert the component into the clearly labeled pin socket and get an immediate result — no complex setup required.
Intuitive Status Indicator: A built-in green LED lights up when a component is functioning correctly, giving you fast, visual confirmation at a glance.
Cord-Free & Rechargeable: Dual-purpose Type-C port handles both charging and testing. The built-in 200mAh battery delivers ultra-long battery life with low power consumption.
Precise Pin Labeling: Upgraded hole-to-point, plug-and-play design with clearly marked pin labels prevents incorrect insertion for efficient, accurate testing every time.
Compact & Durable: Slim integrated housing designed for workbench and field use. Certified CE, RoHS, and WEEE compliant.
Auto Range Mode: Automatic ranging takes the guesswork out of testing — just plug in and read the digital display.

Technical Specifications

Model	MO-81
Input Interface	Type-C (USB-C)
Input Voltage	5V AC/DC
Input Current	1A AC/DC
Battery Capacity	200mAh (built-in)
Display Type	Digital Display
Operating Mode	Auto Range
Dimensions	163 × 21 × 13 mm
Certifications	CE, RoHS, WEEE
Supported Components	Optocouplers, IGBTs, Thyristors, TL431, NPN/PNP Transistors, NMOS/PMOS Transistors

What's in the Box

Gaqqee MO-81 Optocoupler & Component Tester × 1

Made in Mainland China.

Frequently Asked Questions

Q: What electronic components can the Gaqqee MO-81 tester test?

A: The MO-81 supports testing of optocouplers, IGBTs, thyristors, TL431 voltage references, NPN transistors, PNP transistors, NMOS transistors, and PMOS transistors — covering 7 component types in a single handheld device.

Q: Does the MO-81 need an external power supply or batteries?

A: No external power supply is required. The MO-81 has a built-in 200mAh rechargeable battery that charges via its Type-C (USB-C) port, the same port used for testing. It features low power consumption for extended use between charges.

Q: How do I know if a component is good or faulty?

A: The MO-81 features an integrated green LED status indicator. When a component is functioning normally, the green light illuminates. The digital display provides additional readout data for a clear, intuitive result every time.

Q: Is the MO-81 suitable for beginners and DIY electronics repair?

A: Absolutely. The plug-and-play design with clearly labeled pin sockets means you simply insert the component and read the result — no probes or complex configuration needed. It's ideal for DIY electronics repair, hobbyists, and professional technicians alike.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.