In this post I compare two multimeters from the Klein Tools product family – MM700 and MM600.
This comparison article will delve into the capabilities, differences, and unique features of the two multimeters, helping you decide which multimeter best suits your requirements.
The MM700 represents an improvement over the MM600 in the following areas:
- True RMS Measurement capability
- Extended temperature measurement range
- Higher Capacitance measurement value
- Low Impedance measurement
Here’s a comparison table that outlines the key specifications and features of the Klein MM600 and Klein MM700 multimeters:
| Feature | Klein MM600 | Klein MM700 |
|---|---|---|
| 💳 Price | Check Price | Check Price |
| Voltage Measurement (AC/DC) | Up to 1000V | Up to 1000V |
| Current Measurement (AC/DC) | AC: 10A, DC: 10A | AC: 10A, DC: 10A |
| True RMS | No | Yes ✅ |
| Resistance Measurement | Up to 40 MΩ | Up to 40 MΩ |
| Capacitance Measurement Max Value | 1000 µF | 4000 µF ✅ |
| Frequency Measurement | 10 Hz to 500 kHz | 10 Hz to 500 kHz |
| Temperature Measurement | -18°C to 538°C | -18°C to 816°C ✅ |
| Low Impedance (LoZ) | No | Yes ✅ |
| Bar Graph | No | Yes ✅ |
| Display Count | 6000 counts | 6000 counts |
| Safety Rating | CAT IV 600V, CAT III 1000V | CAT IV 600V, CAT III 1000V |
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Both meters are quite similar, offering comprehensive measurement capabilities with robust safety features.
The MM700 provides enhanced accuracy and additional functionalities
- True RMS Capability – This is a method used in measuring devices, like multimeters, to provide an accurate reading of alternating current (AC) or voltage. Unlike average-responding multimeters, which estimate the average value of a sine wave’s shape, True RMS multimeters accurately measure both pure waves and more complex, non-sinusoidal waves.
- Higher Capacitance Value: The MM700 can measure up to 4000 µF
- Extended Temperature Measurement Range – The MM700 can measure temperatures up to a maximum of 816°C relative to 538°C for the MM600
- Low Impedance – Low impedance in Klein multimeters refers to a specific mode that reduces the multimeter’s input impedance. This mode is used to help prevent false readings caused by ghost voltages, which are stray voltages that can appear in unused wiring due to induction from live wires nearby. By using a low impedance mode, the multimeter effectively “drains off” these ghost voltages, ensuring that the readings reflect true voltage present in the circuit. This feature is particularly useful for electricians and technicians when diagnosing electrical problems and verifying live versus dead status in circuits.
- Bar Graph – The bar graph in mm700 Klein multimeters is an analog-style display feature represented as a series of vertical bars on the multimeter’s screen. This graph provides a visual representation of measurement changes in real-time, allowing users to observe fluctuations and trends in electrical parameters more quickly than with digital readouts alone. It’s especially useful for observing rapid changes and providing a dynamic view of varying electrical signals, enhancing the user’s ability to interpret data on the fly.
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