Frequently Asked Questions

Which is more accurate, the KAIWEETS HT118E or the KM602?

I’d give the edge to the HT118E here. Its 20,000-count display provides finer resolution than the KM602’s standard count, which means you see more decimal places on voltage and resistance readings. For professional work where every millivolt matters, that extra detail makes a real difference. The KM602’s Smart Mode is convenient, but it doesn’t match the HT118E’s raw measurement precision.

Is the KM602 worth the extra money over the HT118E?

That depends on what “worth it” means to you. The KM602 costs more primarily because of its Smart auto-detect feature and the built-in rechargeable battery — you never need to buy AAA batteries again. But the HT118E gives you higher safety ratings at CAT III 1000V versus the KM602’s CAT III 600V, plus Min/Max recording. I’d say the KM602 is worth it if convenience and rechargeability are your top priorities, but the HT118E offers more raw capability.

Which multimeter is better for automotive troubleshooting?

For automotive work, I’d grab the HT118E without hesitation. The Min/Max recording feature is a lifesaver when you’re trying to catch intermittent voltage drops in a car’s charging system or sensor circuits. It also measures temperature up to 1000°C with the included thermocouple, which is handy for checking exhaust or coolant temps. The KM602 works fine for basic car battery checks, but it lacks those advanced diagnostic tools.

Do both meters measure temperature and capacitance?

Yes, both the HT118E and the KM602 measure temperature, capacitance, frequency, and duty cycle. The HT118E comes with a thermocouple in the box, while the KM602 bundle includes soft silicone test leads instead. If temperature measurement is critical for your work, the HT118E is the better pick since it’s ready to go right out of the case.

Which multimeter is safer for high-voltage work?

The HT118E is the safer choice for high-voltage environments hands down. It’s rated CAT III 1000V and CAT IV 600V, with double ceramic fuses and a thermistor protection circuit. The KM602 is rated CAT III 600V, which is still safe for most household and automotive circuits, but I wouldn’t trust it on industrial 480V panels the way I trust the HT118E.

Can the KM602’s Smart Mode replace manual ranging entirely?

Almost, but not completely. The Smart Mode automatically detects AC/DC voltage, resistance, and continuity, which covers probably 80% of what I do daily. But for capacitance, frequency, and diode testing, you still need to switch modes manually. The HT118E is fully manual and auto-ranging, so you’re making every selection yourself. If you want maximum convenience for basic measurements, the KM602 wins — but the HT118E gives you full control.