KOWSI KWS-DC28 Voltage Tester Power Meter 30V 12A 5.5×2.5mm DC Jack

❓Frequently Asked Questions (FAQ) – KWS-DC28 Voltage Tester

Q1: What types of devices can I use the KWS-DC28 voltage tester with?

A: The KWS-DC28 is compatible with a wide range of DC-powered devices, including computer monitors, power tools, routers, mini PCs, and other low-voltage electronics. It supports input voltages from 4V to 30V DC, making it suitable for home, workshop, and field use.

Q2: Does it measure current in both directions?

A: Yes. The tester supports bidirectional current detection, meaning it can accurately measure current flow in both charging and discharging directions. This is especially useful for battery and power supply diagnostics.

Q3: Can I view all readings on a single screen?

A: Yes. The built-in 0.96-inch TFT display presents multiple data points at once, including voltage, current, power, energy, capacity, and runtime, giving you a comprehensive view of your power system in real time.

Q4: How do I switch between data views?

A: The device features a simple single-button interface. Click once to switch display pages and double-click to flip the screen orientation. This helps you adapt the display to your viewing angle or device layout.

Q5: Does it store data after power-off?

A: Yes. The KWS-DC28 has an intelligent memory function that retains your last readings even after the device is powered off. This feature is ideal for tracking performance over time or diagnosing intermittent issues.

Q6: How accurate are the readings?

A: The tester uses a high-precision acquisition chip for stable and reliable measurements. It’s a dependable tool for professionals and hobbyists who require consistent data across voltage and current tests.

Q7: Can I use this tester with USB-C or PD (Power Delivery) devices?

A: The KWS-DC28 uses a DC 5.5×2.5mm barrel jack input, which is standard for many power adapters and DC-powered electronics. It is not designed for direct testing of USB-C or PD devices. If you need to test USB-powered devices, you’ll require a compatible USB-to-barrel jack adapter, ensuring the voltage and current stay within supported limits (DC 4V–30V, 0A–12A).

Q8: What is included in the box?

A: The package includes 1 × KWS-DC28 Voltage Tester, fully assembled and ready to use.

You found it on efillooc!