The Extech AUT20 offers a compact, easy-to-use automotive circuit tester with ATC-blade connectors that plug directly into the fuse block. It features a measurement range of up to 20A at 48V DC for a maximum of 10 seconds, with an accuracy of ±(2% reading + 2 digits). The device provides a resolution of 10mA and can detect signals at a distance of less than 0.2 inches. Its dimensions are 86 x 37 x 28.5 mm (3.4 x 1.5 x 1.1 inches), and it weighs approximately 68 grams (0.15 pounds).