Specifications: Measuring Range: 0-20A DC Accuracy: Class 2.5 Color: White Gross weight: 69g, or 2.43oz Net weight: 56g, or 1.98oz Size: 64*55.5*47mm, or 2.52*2.19*1.85in Shunt Resistor: High quality and good performance Used for a DC 20A current Amp meter Easy to install Accuracy: Class 0.5 Voltage Drop: 75mV Material: Steel, cupro-managanese, plastic Color: Black Dimension (L x W x H): Approx. 4 1/2 x 1 x 3/4 inch (12 x 2.5 x 1.8cm) Package included: 1x Analog Ammeter Current Panel Meter 1x 20A Shunt X-117.