Dragino LDS02 Doorsensor
The Dragino LDS02 is a LoRaWAN door sensor. It detects the opening and closing of a door and sends the status to a LoRaWAN network.
The sensor is small and powered by 2 AAA batteries. These batteries are easy to replace.
The LDS02 periodically transmits its data every day, as does every open-close action. It also keeps track of the time the door was open and determines the length of time the door was last opened.