Review on Enhancing Solar Efficiency: Unveiling the Renogy Solar Charge Controllers Data Module by Eugene Cox

First of all I didn't know I needed a SIM card for this. I have "TOPGREENER Smart Wi-Fi Mini Plug with Power Monitoring, Smart Plug, Control Lights and Devices from Anywhere, No Hub Required, Works with Alexa and Google Assistant, TGWF115PRM, 4-Pack" and don't need a SIM card, to access it from anywhere. Why do I need a SIM card for Renogy products? I tried a SIM card from an old phone, but it's too small to fit in the device's SIM card holder. Pretty crappy and will have to send it back.