Schlange camalot door lock - no key and delete codes after guest leaves. very simple with very electronic moving parts, battery lasts a year. 3 months use no issues
nest smoke/carbon monoxide detector
- battery operated constant checks any issues come to your smart phone.
Sinope thermostas- we have electric baseboards its the only thermostat i can see temp in each room and set a maximum valie for heat and turn down if needed via smartphone.
Insteon lighting and door open monitor entry and am able turn lights on/off from anywhere as its a second home via smartphone