The OBD2 to OBD1 GM Adapter is a diagnostic tool connector designed to convert OBD1 12 pins to OBD2 16 pins. Manufactured by Aosiyp, this adapter is branded and lightweight, weighing only 3.52 ounces. Made in China, it allows for seamless communication between OBD1 and OBD2 systems, ensuring compatibility and accurate readings during diagnostics. With a power source adapter and a screen size of 16.3 inches, this product provides reliable connectivity for your vehicle's diagnostic needs.