Zigbee ST-DC1 with RF433
Zigbee ST-DC2 with RF433
Zigbee ST-DC2 with RF433(can not work with ewelink APP)
These Zigbee relay modules have inching/self-lock/inter-lock work modes.
They can work with ewelink APP and Tuya smart life APP and Philips Hue Bridge!
And also it allows you to extend the Zigbee networks!