1.Extreme Low E.S.R.:less than 0.0015ohm;
2.Auto on/off four-digit display;
3.LED indicator lights;
4.Electronic Polarity Protection Circuit;
5.Over-voltage Protection Circuit;
6.Normal working temperature:minus -40 to 105 Celsius degree;
7.Mounting brackets & hardware included;
8.Optional digit color: red, blue & white
9.Available in:0.3F, 0.5F, 1.0F, 1.5F, 2.0F, 3.0F, 5.0F