It's super easy and runs via the app or keypad. https://simplisafe.com/From the website - "Without Wi-Fi, you can still change your system and sensors’ basic settings via the Keypad as well as take advantage of our Professional Monitoring service’s basic features.

For both tenant and landlord peace of mind, the property had an extensive video surveillance and security DVR system already installed by the prior owner, which covers outdoor areas and indoor common areas and records 24/7/365, as well as sensors for excess dB noise levels.

. - Usage-Based: I've mainly seen hardware solutions here like plug sensors and electrical sensors.

I will say when they moved in, I had to replace the washer, the microwave, the carpet in the entire basement (required), the safety sensors on the garage.  

How about motion sensors on a long driveway with a chime in the house? 

We also have a ~$100/month tech fee that builds in all of the subscriptions we use for each property (Ring cameras, Minut sensors, Price Labs, etc.).

I would recommend you install noise sensors so keep a tab on guests and collect CC information from every guests.

Thanks,AniMotion sensor lights, security cameras, security doors, put ADT sign in the front of the house - will get rid of a lot of homeless and any weird people lurking around!

Put up a light with motion sensors, but honestly if one of the adults is sneaking out the back in the middle of the night-that is silly-why not walk out door like a normal person. 

The other thing we did is place a temperature sensor in the boiler and it alerts us if the boiler temperature goes below a certain level.