Abstract: A wearable electrical circuit detection device is provided with a plurality of modules configured to functionally execute the necessary steps of detecting an energized electrical circuit. These modules include a wearable holder worn at or near a finger, a sensing module positioned on the wearable holder, an alarm module in communication with the sensing module, and a fastener that fastens the wearable holder in a fastened position. The sensing module, in one embodiment, senses an energized electrical circuit when the sensing module is near the electrical circuit. In some embodiments, the alarm module generates an alarm in response to the sensing module sensing an energized electrical circuit. The fastener, in some embodiments, alternates between the fastened position and an unfastened position. In some embodiments, the fastener includes a conductive interface that activates the sensing module in response to the fastener being in the fastened position.