Product Name: Analog Amperemeter Measuring Ampere Range: DC 1-30A Meter Face Size(): 6.3 x 5.5 x 1cm / 2.5" x 2.2" x 0.39" (L*W*T) Thread Size: 0.37 x 0.83cm / 0.15" x 0.33"(D*L); Overall Depth: 5.77cm / 2.27" 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: 1x Analog Amperemeter Only the above package content, other products are not included. Note: Light 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.