Excellent price on this smart window/door sensor that's designed to detect when a door or window has been opened or closed. It can be configured to do a number of actions when a door/window is opened/closed including sending a notification to your phone, turning on a smart light as you enter the room and more.
This sensor supports Tuya (WiFi) and is compatible with Smart Life, Amazon Alexa, Google Home and Home Assistant. It's powered by a single AAA battery
AU$ based on current MasterCard rate and GST inclusive.
Hm… will unlikely be a sensitive device. Wifi will kill the battery super quick. Zigbee or BLE are more battery friendly options