RadioShack, American chain of wireless and electronics. Since 1921.
This is a RadioShack American brand, a precise and reliable Digital Multimeter.
This 29-range digital multimeter is a compact, auto-ranging, digital multimeter ideal for testing in the field, lab, shop or home.
It measures AC and DC voltage up to 600V, AC and DC current up to 10A, resistance up to 40M ohm, and tests 1.5V C, D, AA, AAA, and 9V batteries.