This dual range 0-50 or 0-500 miliampere (mA) DC Ammeter features an analog display. This economy ammeter is designed to measure the electrical current of a circuit. This device can be used for education, laboratory and scientific applications and also industrial or any application where measuring an electrical current is required. This ammeter is full scale and fully enclosed within a sturdy plastic housing and has an accuracy of ±2.5%. The binding posts are color-coded and the unit features a zero-adjustment. Measures from 0-50 milliamperes (mA) at a scale of 1 milliamperes (mA) or from 0-500 milliamperes (mA) at a scale of 10 milliamperes (mA). Comes complete in a customized Styrofoam protective shell. Product Dimensions 4in. X 5in. x 4in. (lxwxh) Specifications Measuring Range: 0 ~ 50mA0 ~ 500mA Accuracy: +/- 2.5%.