A Silver color metal and enamel device 1 3/16 inches (3.02 cm) in height consisting of a shield blazoned: Per fess rayonnant Argent and Tenn, in chief an engraved lighthouse having three windows of the field, the center window lighted emitting rays fesswise Or, surmounted by a Phoenix rising of the second, four lightning flashes issuant out of base pilewise of the first. Attached below and to the sides of the shield an Orange scroll inscribed SIGNAL SENTINELS in Silver letters.
The field is white (silver) and orange, the colors of the Signal Corps. The rayonnant division alludes to flames on the torch of the traditional symbol of the Signal Corps and the phoenix rising out of the flames is a reference to the rebirth of the three signal companies the Battalion was composed from, as well as a tongue in cheek reference to the units equipment. The lighthouse is representative of Michigan. Michigan has more lighthouses than any other state in the country. Additionally, a lighthouse has historically been used to communicate and guide vessels to safe harbor, much in the same way that the Signal Corps allows Soldiers to communicate and assist each other and support the commanders overall vision. The three windows on the lighthouse represent the three armory locations that will be home to the units of this Battalion. The lightning bolts represent the core mission of the Signal Corps.
The distinctive unit insignia was approved on 14 October 2016. It was amended to correct the description and symbolism on 4 November 2016.