Hi all,
I am looking for a outdoor magnetic contact that I can incorperate into my openhab setup. The place where I want to install the sensor has WLAN but no AC. So it must be battery driven.A WLAN based sollution is prefered. I dont’t have any other 3rd Party smart home systems (like Homematic, Zigbee, etc) in place.
Magnetic contacts alone tend to be battery draining.
In some of the residence halls where I work we have Wi-Fi door locks running off batteries. They were advertised to last a year but I think we get about 4 months from a set of batteries. They only contact the server for updates once a day unless they see a new badge the do not recognize.