3-Phase/Motor Rotation Tester, Voltage Rating: 100 - 600 Vac (10 - 400 HZ) Nominal For Phase Presence Indication, Amperage Rating: 18 Milamp Maximum Consumption, 3 PH Phase, Temperature Rating: 5 - 131 Deg F Operating, -4 to 158 Deg F Storage, Display: Neon Lamps and Leds, Dimensions: 6 In Height X 2.8 In Width X 1.4 In Depth, Phase Rotary Field Direction: 1 - 600 Vac (2 - 400 HZ), Determination Of Motor Rotation: 1 - 600 Vac (2 - 400 HZ) Requires Greater Than 1/2 Turn, Over Load Protection: 550 V (Between