X-Sense 4-Pack Wi-Fi Water Leak Detector w/App

This water leak detector features top and bottom sensors that detect water as shallow as 0.4 mm. It offers a wireless connection range of up to 1,700 ft in open areas. It's compact design, measuring 0.7 inches thick and 3 inches in diameter, fits into tight spaces. The price drops from $69.99 to $49.99 to $44.99 when you clip the 10% off coupon on the product page. Shipping is free.

Clip the 10% off coupon on the product page.