Best Water Leak Detectors at Amazon (2026 Reviews)
Top smart sensors and monitors to protect your home from leaks
Last Updated: 2026-01-13
Quick Summary
- Check connectivity: Wi‑Fi gives remote alerts, while Z‑Wave/Zigbee needs a hub.
- Sensor type matters: spot sensors are cheap; rope/cable sensors detect along a line.
- Integration: prefer devices that work with Amazon Alexa, Google Assistant, or a shutoff valve.
- Warranty and replacement sensors: buy from reputable brands available on Amazon for easier returns.
Top 5 Products at Amazon
1. Flume 2 Smart Home Water Monitor
$129 - $199
A whole-home water monitor that installs on your water meter to track usage in real time, detect leaks, and send alerts via the Flume app. Available on Amazon and pairs with voice assistants and smart-home platforms.
Key Features
- Clamps to water meter—no plumbing changes required
- Real-time usage monitoring and leak alerts
- Works with Alexa and Google Assistant
- Detailed leak history and daily reports in the app
✅ Pros
- Monitors whole-house flow and spots hidden leaks
- Comprehensive app, good analytics
- Non-invasive install—no plumber required
❌ Cons
- Does not directly shut off water (requires separate shutoff device)
- Higher upfront cost than spot sensors
Best For: Homeowners who want whole-house monitoring and data-driven leak detection
2. Honeywell Home Wi‑Fi Water Leak Detector
$35 - $60
A compact, Wi‑Fi-connected water detector from Honeywell Home that sends push notifications to your phone and emits an audible alarm when moisture is detected. Sold on Amazon and compatible with smart-home systems.
Key Features
- Wi‑Fi connectivity for remote alerts
- Loud built-in siren and LED indicators
- Battery powered with months of life
- Compact footprint suitable for under-sink placement
✅ Pros
- Reliable manufacturer with good Amazon support
- Easy, battery-powered setup—no hub required
- Clear alerts and local alarm
❌ Cons
- Short detection area—best for single points like water heaters
- Wi‑Fi setup can be finicky on crowded networks
Best For: Users who want a dependable, simple Wi‑Fi sensor for appliances and basements
3. Govee WiFi Water Leak Sensor (Smart Rope/Cable Option)
$29 - $79
Govee's water leak sensors include short spot sensors and longer rope/cable models that detect leaks along a path. They connect over Wi‑Fi to send push alerts and integrate with the Govee app—readily available on Amazon.
Key Features
- Available as spot sensor or long braided cable
- Wi‑Fi connectivity for instant phone alerts
- App integration and basic automation
- Low battery consumption with replaceable batteries
✅ Pros
- Multiple form factors to cover appliances and long runs
- Competitive price on Amazon
- Good app notifications and history
❌ Cons
- App can be cluttered—limited advanced analytics
- Cable sensors may require careful placement to avoid false positives
Best For: Homes needing flexible coverage along plumbing runs or under floors
4. Flo by Moen Smart Water Detector
$79 - $159
Part of the Flo ecosystem, the Flo by Moen sensor detects leaks and integrates with the Flo Smart Water Shutoff (sold separately) to stop water flow. The detector reports to the Flo app and is listed on Amazon as part of a broader leak protection solution.
Key Features
- Integrates with Flo ecosystem and shutoff valve
- Real-time alerts and diagnostic information
- Long battery life and rugged build
- Geared toward connecting to a whole-home protection system
✅ Pros
- Designed to work with automatic shutoff for serious prevention
- Strong brand reputation and app clarity
- Good for pairing multiple sensors across a home
❌ Cons
- Best value when combined with Flo shutoff (additional cost)
- Setup and ecosystem may be overkill for small apartments
Best For: Homeowners seeking integrated leak detection with automatic shutoff capability
5. Wyze Leak Sensor
$12 - $35
An affordable, battery-powered leak sensor from Wyze that pairs with Wyze hubs and the Wyze app. Common on Amazon for budget-conscious buyers who want smart alerts and simple home coverage.
Key Features
- Very low price and compact size
- Works with Wyze Bridge for remote notifications
- Magnetic mount and flexible placement
- Replaceable batteries and easy setup
✅ Pros
- Excellent value for basic leak detection
- Integrates with Wyze ecosystem and Alexa
- Small, unobtrusive, easy to hide under appliances
❌ Cons
- Requires Wyze Bridge for full remote functionality
- Limited coverage area compared with cable sensors
Best For: Budget buyers and renters who want basic smart leak alerts on Amazon
Frequently Asked Questions
Do water leak detectors on Amazon require a subscription?
Many basic leak sensors do not require a subscription—push alerts and local alarms work without recurring fees. However, some whole-home monitors and advanced analytics platforms may offer subscription tiers for historical data, premium alerts, or automatic shutoff integration. Check the Amazon listing and product details to confirm whether a subscription is optional or required.
Can I use these detectors with Amazon Alexa?
Yes—several models sold on Amazon, such as Flume, Honeywell, Govee, Flo by Moen, and Wyze, offer Alexa integration. Integration level varies: some allow voice status checks and notifications while others enable automations. Verify Alexa compatibility on the product page and in user reviews before purchase.
Are cable sensors better than spot sensors?
Cable sensors detect moisture along a length, making them better for covering drains, perimeter floors, or long runs of pipe; spot sensors are fine for single appliances like water heaters. Choose cable sensors when you need broader coverage—many are available on Amazon as an affordable middle ground between spot sensors and whole-house monitors.
Will a leak detector stop water flow automatically?
Not by itself. Most detectors only alert you. To stop water automatically you need a shutoff valve or a system (e.g., Flo by Moen or a third-party smart shutoff) that can act on sensor alerts. Some ecosystems sold on Amazon bundle sensors with shutoff valves for full protection.
How do I know if a Wi‑Fi sensor will work in my basement?
Check Wi‑Fi signal strength near the planned sensor location; many Amazon listings and reviews note recommended signal levels. If Wi‑Fi is weak, consider a Zigbee/Z‑Wave sensor with a hub or a battery-powered sensor with a local alarm. A Wi‑Fi range extender or placing a sensor closer to the router can also help.
Final Thoughts
Amazon makes it easy to compare water leak detectors from entry-level spot sensors to sophisticated whole-home monitors. If you want actionable, data-driven protection, the Flume 2 (editor's pick) is a strong choice for whole-house visibility, while the Wyze Leak Sensor (best value) is ideal for inexpensive, localized protection. For integrated shutoff capabilities, consider the Flo by Moen ecosystem. Before buying on Amazon, read verified reviews, confirm compatibility with your existing smart-home setup, and factor in subscription or replacement-sensor costs. Proper placement and regular testing are key—no detector replaces routine maintenance and periodic plumbing inspections, but the right Amazon-purchased device can save thousands in damage and give you peace of mind.