Amazon.com: NM1 Router Rebooter, Internet Monitoring and Automatic Network Reboot, WiFi Reset Plug with Programmable Notifications
Network Monitoring Basics: What Are Routers and Switches?
How to Monitor Network Traffic
Promiscuous Monitoring in Ethernet and Wi-Fi Networks - Monitoring Using Switches
Amazon.com: ConnectSense Router Rebooter, Monitors Your Internet and Automatically Reboots When A Connection Failure is Detected, Can Be Used as a Scheduled ON/Off Cycler or Remote ON/Off Controller : Electronics
The Best Solution to Monitor your Home Network Traffic for Free (2019)
Ethernet Temperature Sensor | Temperature Humidity Sensor | Wireless Router - Wireless - Aliexpress