Frequently Asked Questions

Which is better for auto ranging, the KM601s or the KM200P?

Both meters feature true auto ranging, so you won’t have to manually adjust ranges with either one. However, the KM601s gives you a 10,000-count resolution compared to the KM200P’s 4,000 counts, which means it displays more digits and gives you more precise readings on tricky signals. For most home and auto work, the KM200P’s auto ranging is totally fine. But if you’re measuring sensitive electronics or want that extra decimal place, the KM601s is clearly the better choice.

Is the KM601s worth the extra money over the KM200P?

That depends entirely on how often you use your multimeter. The KM601s has a rechargeable 1200 mAh battery, which means you’ll never buy 9V batteries again — that adds up over time. You also get a color LCD with a flashlight, temperature measurement, duty cycle, and Min/Max/Average recording. If you’re a weekend DIYer who uses a meter once a month, the KM200P is the smarter buy. But if you use your meter weekly for work, the KM601s pays for itself in convenience and features.

Which multimeter has better safety ratings?

The KM601s is the clear winner here with its IEC CAT.III 1000V and CAT.IV 600V ratings, plus double fuse anti-burn protection. The KM200P maxes out at 600 volts and doesn’t list the same category ratings. If you’re working on industrial panels or high-voltage circuits, the KM601s gives you more peace of mind. For household outlets and low-voltage automotive work, the KM200P is perfectly safe.

Can the KM200P measure temperature like the KM601s?

No, it can’t. The KM601s includes thermocouples in the box and measures temperature in both Celsius and Fahrenheit. The KM200P skips temperature measurement entirely — its specs only cover AC/DC voltage, resistance, continuity, capacitance, and diode testing. If you work on HVAC systems or need to check motor temperatures, you’ll want the KM601s for that built-in temperature function.

Which one is better for beginners?

Honestly, I’d say the KM200P is the better starting point. The all-button operation is more intuitive than a traditional rotary dial, and the 4,000-count display is plenty for learning the basics. The 15-minute auto-shutdown also saves battery life if you forget to turn it off. The KM601s has a SMART mode that auto-detects what you’re testing, which is actually pretty helpful for beginners too — but the higher price tag makes it a bigger commitment if you’re just starting out.

How do the displays compare in low-light conditions?

The KM601s wins this one hands down. It has a large color LCD screen with a built-in flashlight, so you can see your readings clearly even in dark crawl spaces or under a dashboard. The KM200P has a white backlight and a small flashlight, which helps, but the screen is smaller and less vibrant. If you work in dim areas regularly, the KM601s’s color display is a big improvement for readability.