Buy Relay board 4ch WIFI DIN rail at the right price @ Electrokit
Shelly Pro 3. Professional 3-channels DIN rail smart relay switch up t – Digital Bay Tech
1P+N Din Rail WIFI Circuit Breaker Smart Timer Switch Relay Remote Control By eWeLink Smart Home Compatiable With Alexa Google
Amazon.com: Shelly Pro 1 | WiFi & Bluetoooth 1 Channel Smart Relay Switch | Home Automation | Compatible with Alexa & Google Home | iOS Android App | No Hub Required
Wi-Fi 1/16 DIN PID Temperature Controller (For Relay) [AW-SYL-2342] - $99.99 : Auber Instruments, Inc., Temperature control solutions for home and industry
Amazon.com: Shelly Pro 1 | WiFi & Bluetoooth 1 Channel Smart Relay Switch | Home Automation | Compatible with Alexa & Google Home | iOS Android App | No Hub Required
Amazon.com: Shelly Pro 2 | Wi-Fi, LAN & Bluetooth 2 Channel Smart Relay | Home & Facility Automation | Compatible with Alexa & Google Home | iOS Android App | Lights Automation