KWS-DC28 Digital Voltmeter Ammeter Wattmeter DC 4–30V 0–12A

KWS-DC28 0.96" TFT Digital Voltmeter, Ammeter & Wattmeter – DC 4–30V / 0–12A

The KWS-DC28 is a compact, high-precision DC power meter that displays voltage, current, wattage, capacity, energy, and elapsed time all on a single vivid 0.96-inch TFT colour screen. Whether you're testing a phone charger, checking a power supply, or monitoring DC-powered equipment, this all-in-one tester delivers fast, accurate, real-time readings in a pocket-sized form factor.

CE and RoHS certified. Made in Mainland China.

Key Features

• 0.96" TFT High-Definition Display – Crisp, colour readout of multiple metrics simultaneously for at-a-glance monitoring.
• Multi-Parameter Measurement – Measures DC voltage (4–30V), current (0–12A), power (0–360W), capacity (0–666,666mAh), energy (0–999,999mWh), and runtime (0–99 hours).
• Power-On Data Logging – Automatically logs readings from the moment power is applied, capturing peak power, maximum current, and highest voltage per session.
• Bidirectional Current Detection – Powered by high-precision sensing chips that support bidirectional current measurement for versatile testing scenarios.
• Intelligent Current Memory – Instantly visualises real-time power status, voltage, current, and capacity so you always know what's happening in your circuit.
• One-Click Page Switching – Single-click to cycle through display pages; double-click to toggle screen orientation for easy reading in any mounting position.
• Wide Compatibility – Works with computer monitors, power tools, routers, mobile phone chargers, DC power supplies, and other DC port devices.
• Compact & Durable – Measures just 60 × 20 × 12mm, making it ideal for benchtop use, in-line installation, or portable field testing.
• CE & RoHS Certified – Meets international safety and environmental standards. No high-concern chemicals.

Technical Specifications

What's in the Box?

• KWS-DC28 Digital Power Tester × 1

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Frequently Asked Questions

Q: What devices is the KWS-DC28 digital wattmeter compatible with?

A: The KWS-DC28 is compatible with any DC-powered device operating within DC 4–30V and up to 12A, including mobile phone chargers, computer monitors, routers, DC power supplies, power tools, LED lighting, and battery-powered systems. It works with standard DC connector ports for stable, reliable in-line measurement.

Q: Does the KWS-DC28 voltmeter log data automatically?

A: Yes. The KWS-DC28 features automatic power-on data logging. As soon as power is applied, the device begins recording readings and tracks peak power, maximum current, and highest voltage for that session — no manual setup required. All data is displayed in real time on the 0.96" TFT screen.

Q: How do I switch between display pages or change screen orientation on the KWS-DC28?

A: It's simple — press the button once to cycle through the available display pages, or double-click to toggle between portrait and landscape screen orientation. This makes the KWS-DC28 easy to read whether it is mounted horizontally, vertically, or held in hand.

Q: Is the KWS-DC28 power meter certified for safety and environmental compliance?

A: Yes. The KWS-DC28 holds both CE and RoHS certifications, confirming it meets European safety standards and is free from high-concern chemicals, making it a responsible choice for professional and DIY electrical testing applications.

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.