Moisture / Water Alarm

Hi. I'm interested in purchasing an alarm to put in the utility room with my water heater. The room does not have a floor drain, and I recently had some damage from a leaking water heater. I have found a few sources on the net that sell water alarms, but would like a recommendation from others that have bought one. A google search of this ng did not turn up many posts on this topic. Thanks for the input.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.