Easy to read Comes with screws for simple DIY installation Range: DC 0 - 20A Power: Tested taken from the device Color: White This is a 20A analog ampere panel meter current ammeter, ideal for your systems to have a quick and accurate monitor Dimensions: 55 x 63 x 55 mm or 2.16 x 2.48 x 2.16 inch Note: There are 2 different kinds in stock, and the colors of the screws may vary; the color will be sent at random Screws for easy installation Note: This product needs to connect with shunt resistance It comes without the shunt resistor Package content: 1 x DC ammeter 0-20A Note: Random color; do not accept requests for specific color Note: Lighting and different displays may cause the color of the item in the picture to be slightly different from the real thing The measurement allowed error is +/- 1-3cm