After the close of the War, the XR-115 as upgraded and re-installed on the SS Husnock just prior to that vessel's deployment on the Mission. The XR-115 was deemed highly effective at locating Husnock life even at extreme ranges.
The XR-115 operated with a characteristic humming noise, described by some as a "death ray noise". The humming and droning of the sensor would increase in intensity the closer to Husnock life the sensors drew. Once Husnock lifeforms had been locked to a specific location, the sensor would emit a mechanical "cranking" sound which was audible through the main sensor panels onboard a ship's bridge.