Battery operated moisture sensors

Hey guys,

I found a battery operated moisture sensor at the local hardware store. It takes a 9V battery and you can place it wherever you want to be alerted of moisture/water. It sounds an alarm when it comes in contact with water. They work great for under the sinks and in basements. Since plumbing leaks are a FREQUENT maintenance issue, this can help to save extensive damage and they’re like $10.

Yep. I have 3 in my house. Runs on 2 AAs, have one by the hot water heater, laundry room and dishwasher.