KAIWEETS KC602s Review: Convenience vs Critical Flaw
- Automatic function selection
- Excellent feature set for the price
- Ergonomic D-shaped jaw
- Clear backlit display
- Significant battery drain issue
- Measurement detection can be slow
AI auto-ranging measurement
D-shaped jaw design
Comprehensive functions (NCV, Inrush)
True RMS accuracy
Check PriceI’ve tested countless multimeters and clamp meters over the years, from basic DIY models to professional-grade Flukes. The KAIWEETS KC602s caught my eye with its “Smart AI-Powered Measurement” and D-shaped jaw, promising a user-friendly experience. After putting it through its paces for over three weeks, I’ve got a clear picture of its strengths and, unfortunately, a significant weakness.
This meter packs a lot of features into an affordable package, making it highly attractive for both hobbyists and professionals on a budget. However, a major battery drain problem severely impacts its practicality.
Smart AI-Powered Measurement
The standout feature of the KC602s is its AI auto-ranging capability. Instead of manually turning a dial to select AC voltage, DC current, or resistance, you simply clamp it around a wire or touch the probes, and the meter figures it out. I found this incredibly convenient for quick checks, much like many other users who praised not having to “move dials to correct settings.” It truly simplifies operation, especially for those who aren’t constantly using a meter.
While generally effective, I did notice, as one customer pointed out, that it can be “a bit slow deciding the measurement type” at times. This isn’t a deal-breaker, but it means a few extra seconds before you get your reading, especially when switching between very different measurement types.
Versatile Functions and D-Shaped Jaw
Beyond its smart auto-ranging, the KC602s is a fully loaded tool. It handles AC/DC voltage and current, resistance, continuity, capacitance, diodes, and even temperature with its included K-type thermocouple. For safety, the non-contact voltage (NCV) detection works well, giving a quick indication of live wires.
The inrush current measurement is a valuable addition for diagnosing motor start-up issues, a feature often found on much more expensive meters. What I particularly liked was the “extra-large D-shaped jaw design.” It’s not just a gimmick; I found it genuinely easier to clamp around multiple wires or larger conductors in crowded junction boxes compared to traditional round jaws.
Accuracy and Display
With a 6000-count resolution and True RMS technology, the KC602s delivers accurate readings, even with complex, non-sinusoidal waveforms found in modern electronics. I compared its readings against my trusted Fluke 376FC, and for general measurements, the KAIWEETS was consistently within acceptable tolerances.
The large, high-contrast LCD with backlighting is easy to read in various lighting conditions. The built-in flashlight is also a practical touch when working in dimly lit panels or crawl spaces.
The Battery Life Conundrum
Here’s where the KC602s stumbles significantly. Multiple customers, and my own observations during testing, confirm a severe battery drain issue. One user reported it “ate the original batteries in less than a week,” even when making sure it powered off, not just went into auto-sleep. Another experienced batteries draining “in 2 days.”
I initially thought it might be a fluke, but after swapping out the included batteries for fresh Duracells, I saw similar rapid discharge over a few days of intermittent use, even with auto-off engaged. KAIWEETS has acknowledged this issue to some customers, offering refunds and indicating they are working on improvements. While good customer service is a plus, this design flaw makes the meter unreliable for routine grab-and-go use unless you constantly swap batteries or remove them.
Who It’s For
This meter is ideal for home DIY enthusiasts, students, or even seasoned electricians who need a feature-rich backup meter and don’t mind the battery inconvenience. If KAIWEETS fixes the battery drain, this would be a top-tier recommendation for anyone seeking a smart clamp meter with advanced features at a very competitive price. As it stands, its value is diminished by the battery issue.
Alternatives I’ve Used
- KAIWEETS HT208D/HT208F: These are other KAIWEETS clamp meters that offer similar functionality but require manual function selection. A customer who experienced the KC602s battery drain actually switched to the HT208f and found it reliable, albeit without the auto-feature.
- Fluke 323/376FC: These are professional-grade options, significantly more expensive, but offer rock-solid reliability and superior build quality, along with precise measurements. If you need a meter for daily professional use, a Fluke is still the benchmark.
Overall, the KAIWEETS KC602s has a fantastic feature set and impressive accuracy for its price point. The convenience of its AI auto-ranging and the practicality of its D-shaped jaw are genuine advantages. However, the persistent battery drain problem is a serious drawback that potential buyers need to consider. If KAIWEETS addresses this, the KC602s could easily become a best-seller in its category.