Oscilloscope TEKCOPLUS TK400PLUS Portable Mini DSO with Auto Trigger

Description

Product Overview

The TEKCOPLUS TK400PLUS is a compact, pocket‑sized digital storage oscilloscope designed for both automotive technicians and electronics hobbyists. Housed in a rugged ABS enclosure measuring just 9.06 x 2.36 x 5.91 inches and weighing only one pound, the device balances durability with true portability. Inside, a 2.8‑inch high‑definition LCD panel delivers crisp, 320 × 240 pixel visuals, allowing users to see fine waveform details without straining their eyes. The oscilloscope operates on a 1000 mAh lithium‑ion battery that provides up to four continuous hours of runtime, and it recharges quickly via a USB‑C port, eliminating the need for proprietary chargers. Core specifications include a 2.5 MS/s real‑time sampling rate, 200 kHz bandwidth, and a 10× probe capable of handling up to 800 Vpp, which translates to roughly 280 V AC. The instrument also features a full trigger suite—AUTO, Normal, and Single—ensuring reliable capture of both periodic analog signals and aperiodic digital pulses. All of these capabilities are packed into a lightweight, ready‑to‑use package that requires no assembly, making it an ideal solution for field service engineers, automotive diagnosticians, and lab technicians who need accurate measurements on the go.

Usage

In the automotive repair shop, the TK400PLUS becomes an indispensable ally for diagnosing engine control unit (ECU) signals, sensor outputs, and ignition waveforms. Its auto‑trigger function simplifies the process of capturing transient events, allowing technicians to quickly isolate faults without manually adjusting settings. Outside the garage, the oscilloscope shines in educational labs, where students can explore fundamental concepts such as signal frequency, amplitude, and duty cycle using a device that mirrors the performance of larger bench‑top models. The built‑in battery ensures uninterrupted operation during field inspections, whether you are checking a vehicle’s CAN bus communication on a remote site or troubleshooting a prototype circuit at a trade show. The USB‑C charging capability means you can recharge the unit from a laptop, power bank, or solar panel, extending its usefulness in off‑grid environments. Its compact form factor also makes it a perfect companion for hobbyists who travel to maker fairs, allowing them to demonstrate projects, capture waveforms, and share data with peers in real time.

Why Choose Us

Choosing the TEKCOPLUS TK400PLUS means investing in a product backed by rigorous quality control and a commitment to customer satisfaction. Each unit undergoes a multi‑stage testing process that verifies sampling accuracy, trigger reliability, and battery performance before it leaves the factory. The device’s firmware is regularly updated to address emerging standards and to introduce new analysis tools, ensuring that your oscilloscope remains current throughout its lifecycle. TEKCOPLUS provides a comprehensive one‑year warranty, and a dedicated technical support team is available to assist with setup, troubleshooting, and advanced usage scenarios. Moreover, the brand’s reputation for delivering cost‑effective, high‑performance measurement tools is reflected in the positive customer reviews—averaging 4.2 stars from over two dozen verified purchasers. By selecting this model, you gain access to a reliable, feature‑rich instrument that bridges the gap between professional-grade performance and affordable pricing, all while enjoying the peace of mind that comes from a trusted manufacturer.

Key Features

• Portable design with a lightweight ABS case for easy field deployment.
• 2.5 MS/s real‑time sampling and 200 kHz bandwidth for accurate signal capture.
• Auto‑trigger function simplifies waveform acquisition without manual adjustments.
• Long‑lasting 1000 mAh battery and USB‑C fast charging for up to four hours of continuous use.
• Responsive after‑sales support and one‑year warranty for confidence and peace of mind.

FAQ

What types of signals can the TK400PLUS measure?

The oscilloscope can accurately capture both analog and digital waveforms, including voltage levels up to ±400 V, with a 10× probe that supports up to 800 Vpp. Its 200 kHz bandwidth makes it suitable for most automotive and low‑frequency electronic applications.

How does the auto‑trigger feature work?

When you press the AUTO button, the instrument automatically selects optimal trigger settings based on the incoming signal, stabilizing the waveform on the screen without the need for manual configuration. A long press initiates baseline calibration for even more precise triggering.

Can the device be used with external probes?

Yes, the TK400PLUS includes a standard BNC input that accepts compatible external probes, allowing you to expand measurement capabilities for higher voltage or specialized applications.

What is the warranty period and what does it cover?

TEKCOPLUS offers a one‑year limited warranty covering manufacturing defects and hardware failures. The warranty includes free technical support and, if necessary, repair or replacement of defective units.

Is the oscilloscope compatible with PC software for data export?

The unit supports USB connectivity for transferring captured waveforms to a PC. TEKCOPLUS provides free software that enables you to view, analyze, and export data in common formats such as CSV and PNG.