A tingler, which can also be referred to as a tingler module or palm-tingler, was a component found within DL-44 blaster pistols. Its purpose was to generate a tingling sensation to alert the user when the magazine, or power cell, was running low. Heller modified a "tingler" for use in his Cresh Luck armor, substituting the armor's original audible alert for a more discreet tingler.