A monitor system for one or more surge protection devices may include a hub configured for wireless communication with one or more remote devices, or a sensor configured to detect an end-of-life state of a surge protection device (SPD). The sensor may include a transmitter configured to wirelessly transmit a sensor signal to the hub to indicate the end-of-life state of the SPD. The hub may be configured to transmit to one or more of a remote server or a mobile device a hub signal corresponding to the end-of-life state.