5 Pack Water Leak Detector, Adjustable 0-100 dB Loudly Wet Moisture Floor Water Alarm Leak Sensor, Sink Overflow Pipe Drip Alter for Home/Kitchen/Basement/Bathroom (Battery Included) | Flood Leakage Detection Devices for Pipe/Drain/Sink/Faucet Drip Alert,Floor Flooding in Bathroom/Kitchen/Toilet/Laundry Room

Ordered the 5 pack kit. Came as advertised. Complete with batteries. 4 Stars as 4 out of the 5 worked. The 5th water sensor would not work.

Tested one and very responsive. Recommend, Great.. Brought for my RV.

These things are great! They are simple to use and function just as advertised. We had a sneaky leak under or kitchen sink. By arranging several of these on paper towels in the areas that were getting wet, we were able to find it and fix it. We then re-used them when we had a new dishwasher installed. They picked up a leak from the air gap that would otherwise have just dripped every time we ran the unit until we finally figured out there was a leak way at the back of the cabinet. Useful item. I'll be hanging onto them.

Quality packaging and product construction. Easy to install included batteries. Instructions are adequate and easy to follow. The sensors sense even the smallest amount of water and the default alarm is LOUD although you can adjust the volume to one of 2 lower levels.

These leak detectors will work well for our use, but the instructions are a bit confusing and do not seem to match the product exactly. The manual refers to an indicator light and certain design features that are hard to see on the actual unit. When I tested them, I could faintly see the light come on, but it was not always very visible. The alarm/test function worked, so I feel comfortable using them under sinks and near appliances. Overall, they seem like a useful, inexpensive product, but the instructions could definitely be clearer.