For true-RMS readings
Choose a meter with stated true-RMS AC measurement when that measurement method is required.3 The Fluke 87V specifies true-RMS AC voltage measurement.3
For temperature readings
Choose a meter with an explicitly supported temperature-measurement function when your check calls for a temperature reading.13 The Klein Tools MM400 supports temperature measurement; check the probe and measurement instructions for your application.13
For a hands-free mount
A compatible hanger can hold the meter for viewing while you use both hands for the test.3 The Fluke 87V fits an optional magnetic hanger; budget for that accessory rather than assuming it is included.3
7 models / at a glance
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Models in this comparison
Fluke 87V Max
- Maximum voltage
- 1,000 V4
Klein Tools MM400
- Maximum voltage
- 600 V6
Klein Tools MM600
- Maximum voltage
- 1,000 V10
Every specification for these products
| Specification | Fluke 88V | Fluke 87V | Fluke 87V Max | Fluke 115 | Fluke 117 | Klein Tools MM400 | Klein Tools MM600 |
|---|---|---|---|---|---|---|---|
| CAT safety rating | CAT III 1000 V CAT IV 600 V2 | CAT III 1000 V CAT IV 600 V3 | CAT III 1000 V CAT IV 600 V4 | CAT III 600V safety rated1 | CAT III 600V5 | CAT III 600V6 | cat IV 600V/cat III 1000V7 |
| Auto-ranging | Yes1 | Yes8 | Yes11 | Yes12 | Yes5 | Yes6 | Yes10 |
| Maximum voltage | 1,000 V1 | 1,000 V8 | 1,000 V4 | 600 V1 | 600 V9 | 600 V6 | 1,000 V10 |
| Backlit display | Yes2 | Yes8 | Yes4 | Yes1 | Yes5 | Yes6 | Yes10 |
| True RMS | Not published | Yes3 | Not published | Not published | Not published | Not published | Not published |
| Maximum current | 10 A2 | 10.00 A8 | 10 A4 | 10 A12 | 10.00 A5 | 10 A6 | 10 A10 |
| Temperature measurement | Not published | Not published | Not published | Not published | Not published | Yes13 | Not published |
| Hands-free mount | Not published | Yes3 | Not published | Not published | Not published | Not published | Not published |
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7 products
Fluke 87V Max
- CAT safety rating
- CAT III 1000 V CAT IV 600 V4
Klein Tools MM400
- CAT safety rating
- CAT III 600V6
Klein Tools MM600
- CAT safety rating
- cat IV 600V/cat III 1000V7
How they compare
Scroll the table to see every product and specification.
| Specification | Our pickFluke 88V | Fluke 87V | Fluke 87V Max | Fluke 115 | Fluke 117 | Klein Tools MM400 | Klein Tools MM600 |
|---|---|---|---|---|---|---|---|
| CAT safety rating | CAT III 1000 V CAT IV 600 V2 | CAT III 1000 V CAT IV 600 V3 | CAT III 1000 V CAT IV 600 V4 | CAT III 600V safety rated1 | CAT III 600V5 | CAT III 600V6 | cat IV 600V/cat III 1000V7 |
| Auto-ranging | Yes1 | Yes8 | Yes11 | Yes12 | Yes5 | Yes6 | Yes10 |
| Maximum voltage | 1,000 V1 | 1,000 V8 | 1,000 V4 | 600 V1 | 600 V9 | 600 V6 | 1,000 V10 |
| Backlit display | Yes2 | Yes8 | Yes4 | Yes1 | Yes5 | Yes6 | Yes10 |
| True RMS | Not published | Yes3 | Not published | Not published | Not published | Not published | Not published |
| Maximum current | 10 A2 | 10.00 A8 | 10 A4 | 10 A12 | 10.00 A5 | 10 A6 | 10 A10 |
| Temperature measurement | Not published | Not published | Not published | Not published | Not published | Yes13 | Not published |
| Hands-free mount | Not published | Yes3 | Not published | Not published | Not published | Not published | Not published |