Best Water Heater Leak Detectors

Govee WiFi Water Sensor 3 Pack, Water Leak Detector 100dB Adjustable Alarm and App Alerts, Leak and Drip Alert with Email, Wireless Detector for Home(Support 2.4G WiFi, Not Support 5G WiFi)

GoveeLife WiFi Water Ieak Detector 2 for Home, Smart Water Ieak Sensor 4 Pack with 100dB Adjustable Alarm and App Alerts, Wireless Detector, 1312 ft Transmission for Basement, Kitchen, Bathroom

Aqara Water Leak Sensor Kit - 3 Pack, Requires AQARA HUB, Wireless Water Leak Detector, Wireless Mini Flood Detector for Alarm System and Smart Home Automation, for Kitchen Bathroom, Works with IFTTT

Govee Water Detectors 5 Pack, 100dB Adjustable Audio Alarm Sensor, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)

Geevon 2 Pack Water Leak Detectors, 100dB Water Sensor Alarm Flood Detection Water Alarms for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages, and Attics, Battery-Operated (Battery Included)

SwitchBot WiFi Water Sensor 3-Pack, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Kitchen, Bathroom, Basement, No Hub Required (Support 2.4G)

Water Leak Sensor 4 with 105dB Audio Alarm 3-Pack, SMS/Text, Email & Push Notifications, Freeze Warning, LoRa Up to 1/4 Mile Open-Air Range, w/Alexa, IFTTT, Hub Required!

Govee Water Detectors 2 Pack, 100dB Adjustable Audio Alarm Sensor, Sensitive Leak and Drip Alert, for Kitchen Bathroom Basement (Battery Included)

SwitchBot WiFi Water Sensor, Smart Water Leak Detector, 100dB Adjustable Alerts & App Alerts, IP67 Waterproof, Wireless Detector for Home with 1m Sensing Cable, No Hub Required (Support 2.4G)

FloodStop Water Heater Leak Detector Kit with Automatic Water Shut-Off and Visual/Audible Alarms, 3/4" NPT MIP x FIP