Digital Panel Meter, Digital, Input Range 100 to 500V AC, Accuracy +/-1 Percent, Display Span 9999, Display Digits 4, Red LED Display, True RMS Yes, No Excitation, Use With 3-Phase Current Transformer, Fits 1/4 DIN, 96 x 96mm Opening, Din Rail, Process Connection No, Power Required 40V-300V AC/V DC, Depth 2.16 in, Mounting Clip, Style Amik, Includes Instructions, Manufacturers Warranty Length 2 yr