Sea-Dog Round OLED DC Amp Meter - 0 Amp-100 Amp. Monitors amperage on a bright waterproof daylight readable OLED screen. High contrast and resolution make this screen visible from a wide viewing angle even with polarized sunglasses. Reverse polarity protected. Same compact round size as a standard 12V receptacle this OLED 100 Amp Meter provides many installation options. Injection molded nylon construction. Includes 100A/50mV shunt. IP66 rating. Specifications for Sea-Dog Round OLED DC Amp Meter: Manufacturer: Sea-Dog Color: Black Amperage: 100 amps Charger Type: DC Package Contents: Sea-Dog Round OLED DC Amp Meter Sea-Dog 421620-1: Round OLED DC Amp Meter - 0 Amp-100 Amp