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Please Exercise Caution
IoTaWatt is a low-voltage device and has been tested to conform to established safety standards. Nevertheless, it is used to measure high-voltage electric circuits. Installation of the passive current-transformers that are used to do this can involve a serious, potentially fatal shock hazard. There are no shortcuts to safety. Installation of current transformers inside electrical equipment, or anyplace that exposed high-voltage wiring may be present, should be performed by a qualified electrician. Any instruction or guidance as to installation, placement, or configuration of the current transformers is intended to inform a qualified installer.