A device for detecting the condition of electrical bonding of a plurality of conductive components of an aerial device, the aerial device comprising a plurality of electrical bonding cables, a control module, a gradient control device, a feedback wire to carry an input signal from the conductive components to the control module, and a power source. The device uses the input signal to determine the condition of the electrical bonding of the conductive components including the condition of the electrical bonding cables and connections therebetween and is configured to notify an operator if an unacceptable condition is determined based on a predetermined acceptance standard.