We want a camera system that:1) Connects to internet for remote monitoring via an office computer (not just a mobile device)2) Has motion-sensor alerts3) Records to the cloud, so a thief can't disable/steal the camera to hide their identityWe plan to remove these cameras once a property is rented and reinstall at the next vacant rental.Wi-Fi connection to internet is possible, but we'd also like to look into cellular connections to internet.What suggestions do you have please?

I personally wish we skipped the drain pan install since I believe newer washers have sensors inside.

During renovation: getting a wireless solar cellular camera with motion sensors, night vision and lighting or post Renovation a Ring and or simplisafe system while your project is on the market.

If you stick to American name brand units that are basic - no fancy sensors, doodads or anything else - W/Ds are surprisingly durable, even with renters.

I have a Wynd sensor in my units (mention that we have it and it's 99.9% accurate in our emails), put it in my house rules that it is a $250 fine, and have a sign small above the detector with the same language.

A Minut sensor might be more reliable for detecting smoke presence, keep in mind that it may not differentiate types of smoke.

Depending on which package you buy, it'll come with multiple sensors, a camera and an audible alarm. 

And Border Patrol was there often, with sensors on the bridge telling them when to come collect a new batch of folks. 

I use a Wynd sensor and it works great. 

A temperature sensor is placed on the incoming and outgoing hot/cold water lines to determine the BTUs consumed.