Patent ID: 8710979

Claim:
A personal alarm device comprising: a controller; and a warning device electrically coupled to the controller, the warning device including: a battery, a visual indicator positioned proximate to a worker's line of sight, and a sounder device, wherein the visual indicator, battery and sounder device are housed in a single housing, wherein the visual indicator emits light when the personal alarm device detects a magnetic field, wherein an electrically conductive cable couples the warning, device to the controller, wherein the electrically conductive cable further comprises: a first connector attached to a first end of a first part of the cable, the controller in electrical communication with a second end of the first part of the cable, a second connector attached to a first end of a second part of the cable, and the warning device in electrical communication with a second end of the second part of the cable, wherein the first connector and second connector are adapted to be electrically coupled and form an electrical connection between the controller and the warning device, and wherein the warning device is adapted to be replaced by disconnecting the first connector and the second connector, providing a second warning device in electrical communication with one end of a new second part of the cable, which has a new second connector at the other end thereof, and reconnecting the first connector to the new second connector.