Water Leak Detection Finder
Seven questions — what kind of protection, how large a unit you are fitting, what you can spend, how it is powered, how you reach it, whether it has to work with your smart home, and whether you want a particular brand — across 988 detectors, valves, freeze sensors and monitors. Every result is placed against the median for its own class and size band.
The finder searches the whole corpus. It ranks nothing and hides nothing: a sensor whose listing never stated a weight still appears, marked not stated, because a thin listing is not a worse product.
988 products match
Moen Flo 3/4-inch Smart Water Shut Off Valve, Smart Home Water Monitor Leak Detector, Wifi Connected, App Enabled Flow Meter and Shutoff, 900-001
Weight
1.81kg
Standalone detectors · over 1.5 kg · 12 products
Weight is -20% against the class median of 2.26.
Moray Smart WiFi Water Level Sensor Water Tank Level Monitor Water Level Transmitter , Automatic Alarm Indicator for Tuya Mobile APP Solar Gateway Smart Home Remote IP67 Waterproof (ME202RSP 5m)
Weight
1.60kg
Standalone detectors · over 1.5 kg · 12 products
Weight is -29% against the class median of 2.26.
10 Pack Water Leak Detectors for Home, 100dB Waterproof Water Sensor Alarm Leak Detector for Basements, Bathrooms, Laundries, Sinks, and Windows(Battery Included)
Weight
0.91kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is +12% against the class median of 0.81.
FloodStop NEW Washing Machine Leak Detector Kit with Automatic Water Shut-Off and Visual/Audible Alarms, 3/4" 90deg, Hot & Cold Valves
Weight
0.86kg
Shutoff valves · 400 g – 1.5 kg · 45 products
Weight is +27% against the class median of 0.68.
Moray Smart WiFi Water Level Sensor Ultrasonic Water Tank Level Monitor Oil Tank Gauge Sensor , Automatic Alarm Indicator for Tuya Smart Life Mobile APP Smart Home Remote IP65 Waterproof (ME201RSP)
Weight
0.80kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -1% against the class median of 0.81.
WiFi Water Leak Detectors 5 Pack, 120dB Adjustable Loud Water Leak Sensor, Wireless Wi-Fi Water Leak & Drip Alarm, App Alerts, 5 Water Alarm Sensors & 1 Hub for Home Kitchen, Bathroom, Sink, Laundry
Weight
0.64kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -21% against the class median of 0.81.
E-SDS Water Leak Detector with Shutoff Valve Sounds Alarm, Automatic Water Leak Shut Off Valve System for Pipes 3/4 NPT, Flood Prevention for Laundry,Water Heaters and More
Weight
0.63kg
Shutoff valves · 400 g – 1.5 kg · 45 products
Weight is -7% against the class median of 0.68.
WiFi Water Sensors – 110dB Detector with Real-time APP Notifications | 5Pack Leak Alarm with Remote Control, 2.4G Sensors for Home
Weight
0.58kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -28% against the class median of 0.81.
Nuleto WiFi Water Leak Detector 1s,Water Detectors & Alarms,Water Leak Sensor with SMS,Phone Call,APP Push,492ft for Home,Basement,Kitchen,5 Pack,2.4G WiFi Only
Weight
0.55kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -32% against the class median of 0.81.
RAINPOINT Floating Remote WiFi Water Leak Detector for Home Basement 3 Pack with Hub,Wireless Siren Alarm Leakage Sensor Email & APP Push Notification Kitchen Sink,Bathroom,Laundry,Warehouse
Weight
0.53kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -34% against the class median of 0.81.
5 Pack Water Leak Alarm Detector, 120dB Loud Alert Water Sensor, IP66 Waterproof, Sensitive Leak and Drip Alert, Easy Installation for Home, Basement Flood Prevention, Bathroom, Sink, Laundry
Weight
0.45kg
Standalone detectors · 400 g – 1.5 kg · 42 products
Weight is -44% against the class median of 0.81.
Zircon® Leak Alert 360 Smart Water Leak Detector Kit for iOS Only, WiFi Home Water Leak Detection System, Flood Sensors for Basement Kitchen Bathroom, Includes 2 Sensors and Charging Hub
Weight
0.39kg
Standalone detectors · 150-400 g · 46 products
Weight is +53% against the class median of 0.26.
How to read the results
The figure beside each result is its weight, and beneath it, where one exists, the median for its own class and size band. 403 of the 988 products state a weight; the rest appear unbanded rather than being dropped. Where a class holds fewer than eight products with a stated figure, no median is shown — 13 class cells clear that floor here.
Why power and control are the questions that matter
Weight is asked first only because it is the numeric the baselines are computed from. It is the least useful question on this page. Power source decides where a device can physically go — a battery puck sits under a water heater or behind a washing machine, while a mains unit needs an outlet in the one place you are expecting water. Control method decides whether you find out: an alarm you can only hear is no use in an empty house, which is the entire argument for a phone alert and the reason the vacation-home class exists.
The one specification that states its own negative
Smart-home compatibility is the only field in this corpus where a listing says no as often as it says yes — 283 state that they are compatible and 225 state that they are not. Everywhere else, and on every other site here, an absent specification means only that nobody wrote it down. That distinction is worth keeping: filtering for smart-home compatibility excludes the 225 that ruled themselves out, and keeps the ones that simply never said.
What the finder cannot tell you
It cannot tell you whether a valve fits your pipe, because pipe size is stated by too few listings to compare. It cannot tell you whether a system qualifies for an insurance discount, because that depends on your insurer rather than on the hardware — see the insurance eligibility guide for what actually decides it. And it cannot tell you whether a sensor will still be reporting in five years, which is the question that matters most and is not a specification at all.