Power Meter, LCD Display, Mounting Panel, Input Voltage 110/250V DC, 120/240V AC, Amps 1 A, 5 A, +/-1.00 Percent Accuracy, Measures Current, Frequency, Power, Voltage, Enclosure Rating NEMA 12, Hz 50/60, Meter Range 12 to 480V, Phase 3, Operating Temp. Range 14 Degrees to 131 Degrees F, Height 4.2 in, Width 3.6 in, Depth 2.3 in, Standards UL Listed, Multi-Voltage