Be alerted when power goes out: MySpool Power Failure Detector uses Wi-Fi to send text messages, email or push alerts when power goes off or comes back on. | Monitor outlets for outages and GFCI shut off. Device description is included in alert message to help identify its location. | Each MySpool Power Failure Detector is independent; no hub is required. | WiFi access during power outage is required, please check before ordering. | No fees or subscription costs. Multiple phone numbers and email addresses supported.