SONOFFDW2 - Wi-Fi Wireless Door/Window Sensor No Gateway Required Support to Check History Record on APP

SONOFF DW2-WiFi Smart Door/Window Sensor | No Hub Required | Alexa & Google Compatible | Battery Not-Included

AZIOT 4 Node Smart Switch - WiFi/Bluetooth Communication - Made in India - Timer Function - Voice Command (4 Node)

Ledgebit MINI R2 (Upgraded) 10A Smart WiFi Wireless Light Switch, Universal DIY Module for Smart Home Automation Solution, Compatible with Sonoff, Alexa, Home Assistant, IFTTT etc