Connect this to the REMOTE socket on your tester. It functions exactly like the TEST pushbutton and permits hands-free operation during batch testing. Constructed of rugged, heavy-gauge metal for long life in an industrial environment. Secures to a fixed base or floorboard using mounting holes in the base, if desired. This low-profile design rises only 3/4" from the floor, and its 2.5 X 3.5" dimensions require little room on your work-area floor. Includes a 10-foot cord with a miniDIN8 connector. Will not work with the M2Z/M2U-Basic testers since they do not have a remote socket.