Current sensing device

A device, comprising:

• a current transformer,
• wherein the current transformer is configured to detect a current signal traveling through a wire of equipment that at least a portion of the device is clamped around;
• an energy harvester electrically coupled to the current transformer,
• wherein the energy harvester draws power from a signal generated by the current transformer;
• an energy storage device electrically coupled to the energy harvester,
• wherein energy harvested from the energy harvester charges the energy storage device;
• a processor operatively coupled to the current transformer and configured to:
• determine a state of health of the equipment based on the detected current signal at a first scale;
• in response to determining a problem in the state of health of the equipment based on the detected current signal at the first scale, the processor is configured to determine the state of health of the equipment based on the detected current signal at a second scale, the second scale being different than the first scale;
• a communication device,
• wherein the communication device is configured to transmit information associated with the equipment to an external computing device,
• wherein the information comprises a state of health of the equipment based on the detected electrical current at the second scale;
• and
• a receptacle that accepts a plug,
• wherein connection of the plug allows identification of a current rating for the current transformer.