This Fluke 9040 Phase Rotation Indicator features a clear LCD screen for displaying three-phase status and rotational direction.
Voltage Range: Operates between 40 V and 700 V AC.
Frequency Range: 15 Hz to 400 Hz.
Safety Rating: CAT III 600 V / CAT IV 300 V.
Power Source: Powered directly from the unit under test, requiring no batteries.