SENCKITWiFi Door Sensor: Smart Door Open/Closed Detectors, Wireless Window Sensorwith App Notification Alert, Contact Sensor for Home Security, Compatible with Alexa Google Assistant (2pack)

WiFi Door Sensor: Smart Door Open/Closed Detectors, Wireless Window Sensor with App Notification Alert, Contact Sensor for Home Security, Compatible with Alexa Google Assistant (2pack)

WiFi Door and Window Sensors,Tuya Smart Alarm with Free Notification APP Control Home Security Alarm System, No Hub Required,Compatible with Alexa, Google Home (1-pack)

WiFi Temperature Humidity Sensor: Wireless Temperature Humidity Monitor with App Alert, Free Data Storage Export, Smart Indoor Thermometer Hygrometer Compatible with Alexa Google Assistant (1-Pack)