Color: White; Measures amper range of 1-30A with accuracy of Class 2.5; Clear and easy to read scale and a button for fine tuning the dial; Needle Ampere Panel Meter for electronic applications, auto circuit or other Voltage measurement devices; Material: metal Package Contents: 4x Analog Amperemeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Meter Face Size(): 6.3 x 5.5 x 1cm / 2.5 inch x 2.2 inch x 0.39 inch (L x W x T) Product Name: Analog Amperemeter Thread Size: 0.37 x 0.83cm / 0.15 inch x 0.33 inch(D x L); Overall Depth: 5.77cm / 2.27 inch Measuring Ampere Range: DC 1-30A Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.