Product Price Battery Life (hours) Water Sensitivity (mm) Connection Type Alarm System Smartphone App Notifications
Shelly Flood Gen4 Smart Water Leak Detector
US
£29.58 17520 Mobile app notifications and built-in buzzer

The Shelly Flood Gen4 is a battery-powered leak detector with a 2 m sensing cable that can be extended up to 150 m. It supports Wi-Fi, Bluetooth, Zigbee, and Matter, making it suitable for homes that need broad smart-home compatibility and remote leak alerts.

★ Ideal for

It suits beginners because the battery-powered design, Shelly Smart Control app, easy app pairing, built-in buzzer, and clear mobile notifications provide straightforward setup and immediate alerts.

YoLink Water Leak Detection Starter Kit: Hub and Four Water Leak Sensors
US
£51.77 Instant notifications anywhere anytime
YoLink Water Leak Sensor 2
US
£18.49 App push notifications
TP-Link Tapo T300
US
£12.57 26280 0.5 Instant app notifications; low battery reminder
Eve Eve Water Guard Smart Water Leak Detector
US
£81.33 iPhone, iPad, Apple Watch, and remote notifications with a home hub

Eve Water Guard is a mains-powered leak detector with a 2 m sensing cable that detects water across its length and can be extended up to 150 m. It suits Apple Home users who want loud local alerts, app notifications, and broad coverage without battery replacement.

★ Ideal for

It suits beginners using Apple devices because it is plug-in powered, supports Bluetooth and Thread, offers a 100 dB alarm, and can be controlled through the Eve app or Apple Home app.

GoveeLife Water Leak Detector 1s
US
£32.54 43800 App push notifications, email, SMS, audible alarm and Alexa

The GoveeLife Water Leak Detector 1s uses dual sensor probes, a 105dB adjustable alarm and a gateway-based connection with up to 550m range. Its five-year battery life and multiple alert methods suit homeowners and renters who want broad, low-maintenance leak monitoring.

★ Ideal for

It suits beginners because the Govee Home app provides straightforward setup, device identification and adjustable alerts, while the 105dB alarm and app, email and SMS notifications make leaks difficult to miss.

Shelly Flood S Gen4 Smart Water Leak Sensor
US
£20.71 17520 Real-time smartphone notifications and local alerts

The Shelly Flood S Gen4 is a compact, battery-powered leak sensor with large stainless-steel contact pads that detect small amounts of water, including low-conductivity water. It supports Wi-Fi, Zigbee, Bluetooth, and Matter, making it suitable for beginners who want flexible smart-home compatibility and app-based alerts.

★ Ideal for

It suits beginners because its large-surface water detection, built-in alarm, Shelly Smart Control App, smartphone notifications, and support for Wi-Fi and Matter make setup and monitoring straightforward.

TP-Link Tapo T300 Smart Water Leak Sensor
US
£12.57 26280 0.5 Instant leak and low-battery app notifications