The Electronic Specialties Fuse Lead (No. 134) is a standard test lead set, but with the added feature of the ATO fuse holder. This unit helps prevent a digital multimeter's internal fuse from blowing and provides extra overload protection. With Fuse Lead, this in-line fuse holder serves two purposes: to provide extra overload protection and safety for the user and the measuring instrument; and in the event of overload, the ATO fuse blows before the internal multimeter fuse blows. To avoid taking apart a multimeter with a blown fuse, and replacing the potenitally expensive fuse, the Fuse Lead allows users to avoid this sometimes time-consuming task.