Yup - that's the one.
https://www.amazon.com/THIRDREALITY-Notifications-Compatible-SmartThings-Batteries/dp/B08R9PS2KG/
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Thanks @aaiyar
Can you please explain what do you mean when you say "terminals for wires"?
This seems like a wireless sensor.
In the case of that leak sensor, when water touches it, it sends a signal to Hubitat, using zigbee.
Or it has two screw terminals on it that you can connect to something like the pressure mat I linked to above. When someone sits on the mat, a pressure-sensitive switch closes and completes a circuit that’s now wired into the leak sensor.
The sensor then sends the same “leak” event to Hubitat, with zigbee.
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It’s probably somewhat more common for people to use a contact sensor for this use case. There are even custom drivers that have been modified to send present/not present events when the sensor itself is technically reporting open/closed. But AFAIK the only options for that are z-wave devices.
I would think the zigbee leak sensor could work with a similarly modified driver, but I don’t know if one exists.
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... and turns on 12odb siren ...
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If that’s the case, that would certainly be an issue with that device. Not all leak sensors also have audible alerts.
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True.
Didn't think about that!
As I read through this thread I'm amazed at all of the first world problems we use HE to solve.
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Just a bored guy trying to find a new hobby 
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So the leak sensor is a no no?
Well you've found it. Next step is to create problems so you'll use that smart home to solve it. Been there done that.
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Well, you can use a different leak sensor that doesn't have a siren, or use the Ecolink contact sensor. If you use a different leak sensor, you can simply solder on wires to the terminals ....
That's EXACTLY what I'm doing! It's like you're reading my mind...
I would need to know which one to buy. Hopefully, someone will read this thread and send me to a better leak sensor solution.
what are the disadvantages of using a z wave device such as the Ecolink contact sensor? will I need a z wave repeater in the bedroom for this to work?
This one has screw terminals and doesn't have siren
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Well, that was fast 
Thanks!
There is no any disadvantage. Just different shape and communication link.
But there is an advantage - unlike leak sensor it will not trigger if you touch
terminals or humidity is to high.
so it sounds like I need to use this Ecolink contact sensor. The Aqara contact sensor will not work, right?
Both will do the job.
However leak sensors could be sensitive to elevated humidity/moisture.
All depend on yours environment.
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