Best Water Leak Detectors (2026): Moen, Phyn, TP-Link
- Photograph: Simon Hill
- Photograph: Simon Hill
Wi-Fi Water Leak Detector (SWS0A41)
My budget pick is the X-Sense SWS0A41, which includes four of the best smart water leak detectors I have tested plus a hub for a very reasonable price. Plug the hub in and scan the QR code to connect it to your Wi-Fi network (2.4-GHz band only), connect the detectors via the straightforward app, place them in leak-prone spots, and you're good to go. The detectors are round and fairly large, but they’ve been slimmed down to 17 mm (slimmer than the previous model), making them much easier to slide under appliances or into other tight spots. I love that they have an indented top with two prongs that alert if there are any drips. The four prongs on the underside are equally good at detecting pools of water (as little as 0.3 mm).
The functionality is...
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