4PCS WiFi Relay Switch, Mini Smart Wireless Relay Voice Remote Control Light Switch Electric Outlet Timer, DIY Switch Relay Module fit for Siri/Alexa/Google Assistant/SmartThings: Amazon.com: Tools & Home Improvement
WiFi 16 Relay Module, TCP/IP, UDP, Virtual Serial Port - DIN BOX - Denkovi A E LTD
DIN RAIL WLAN RELAY CARD - Whadda
Buy Shelly 4Pro PM Shelly DIN rail mount relay Bluetooth, Wi-Fi | Conrad Electronic
AT-Q-SY1 WiFi Din Rail Switch Smart Breaker ZigBee Smart Relay