Description Product Reviews 4047 3M Pair Test Plug MS2 The 4047 Pair Test Plug is a probe which permits pair contact without damaging wire insulation. The prongs fit into the test entry port and the adjustable clamp allows for attachment to any MS2 module. A module probe that permits one pair checking without damaging wire insulation The prongs fit the test entry port of all MS2 modules The cord permits easy connection to a talk block or test set. 0 Reviews Hide Reviews Product Reviews