Feature | Old 77 | New 179 | Testing Improvements |
Accuracy | 0.3% | 0.09% | Three times more accurate |
True-rms | No | Yes | Accurate on non-linear signals |
Temperature | No | Yes | No need for a thermometer |
Display size | Small | Large | Easier to read |
Display backlight | No | Yes | Usable in dim areas |
Frequency | No | Yes | Built-in frequency counter |
Capacitance | No | Yes | Measure motor caps |
Max. ac voltage | 750 | 1000 | Wider measurement range |
Min/Max/Average | No | Yes | Capture intermittent problems |
FLUKE 179 Overvoltage category safety rating |
Not rated | CAT IV 600 |
Higher level of protection |
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