Remotely monitor water meters for leaks

[Corey G.]

Hello everyone. I've been reading on biggerpockets for a while but have rarely posted anything before. Thought I would finally ask for some advice. If you can help, I would appreciate it. 

First off, I have some multiplexes I own in different areas of the city and none of them have been metered separately for water so I pay it and just charge a little more for rent. This works well until there is a leak at the property and then I have a huge water bill. I'm trying to get my tenants to be a little more observant and have considered charging them if they don't catch leaks soon enough. The problem is the water usage is for 4 units and determining how much to charge a tenant for an overage is tricky. What if there were multiple leaks? So ideally, I would like to catch the leaks before they become a problem. It looks like there are water meters I could install after the city meter which do pulse output but I don't know how that works or if it will do remote monitoring. I'm pretty sure the city uses RF signals to read the meters. Is there a device I can buy that would read the meters once or twice a day and have that sent to me so I can monitor it. Has anyone found a good solution to remotely monitor water consumption?