Description LED DIGITAL DC AMP METER Suitable for a variety of applications including: Marine cockpits, caravans, trucks, 4×4’s, and RV’s. With tinned leads.Surge protection up to 400W / 35V Measuring current range: 0A – 20A PICO KEY SPECIFICATIONS MOUNT HOLE 29 MM DIAMETER SIZE 36.8 (D) X 38.7 (H) MM