Aeotec Water Sensor 8, Z-Wave Plus 800 Series with Long Range Support, Leak Detector with Temperature & Humidity, SmartThings Compatible, Battery or USB-C Powered Flood Sensor

Price: $39.99
(as of Oct 14, 2026 15:15:24 UTC – Details)

Product description

More than just a flood protection sensor Detect Leaks. Monitor Climate. Stop Damage.

The Smart Water Sensor is more than just a leak detector — it’s a complete environmental monitor. It not only alerts you to water leaks before damage occurs but also measures temperature and humidity to help maintain perfect room comfort. Powered by batteries or USB-C for continuous operation.

Act Before Damage

Leak Detection

Detects water on contact and alerts you to act before damage spreads.

Protect What Matters

Temperature Monitoring

Tracks temperature to help save energy, avoid frozen pipes and maintain home comfort.

Flag Excess Moisture

Humidity Tracking

Monitors humidity levels to flag excess moisture before it becomes a problem.

Dew Point Awareness

Mold Risk Alerts

Uses dew point calculation to trigger mold risk alerts for a healthier home.

1 Leak

2 Temperature

3 Humidity

4 Mold Risk

Z-Wave 800 Series Long Range

Unmatched range. Uncompromising reliability.

With Z-Wave Long Range, the Water Sensor 8 ensures reliable communication even in larger homes. Its extended wireless reach outperforms standard smart home protocols, reducing dead spots and maintaining a strong connection across floors, walls, and long distances. Combined with ultra-low power consumption, Z-Wave Long Range delivers stable performance, longer battery life, and a more responsive smart home—making it the ideal backbone for water leak detection.

Water damage prevention

Smart protection against stressful water damages.

Water leaks are one of the most underestimated dangers in any home, often unnoticed until serious damage is already done. The Water Sensor 8 keeps watch where you can’t, detecting leaks early and alerting you immediately. Whether it’s a leaking washing machine, a faulty pipe, or unnoticed moisture on the floor, the sensor helps prevent costly water damage and protects what matters most: your beloved home. With fast detection and reliable monitoring, Water Sensor 8 gives you peace of mind.

Temperature, Humidity and Dew Point.

Not just a leak detector – It’s a smart climate sensor, for your well being.

Accurate Temperature Sensing – Continuously monitors indoor temperature to help maintain comfort and stable living conditions.

Precision Humidity Sensing – Measures humidity levels accurately to support a healthy indoor climate and prevent moisture issues.

Mold Hazard Notification Based on Dew Point Algorithm – Analyzes temperature and humidity using a dew point algorithm to warn early of potential mold risk

Power Your Way. Protect Every Corner. USB-C Power for maintenance free mode

The included battery delivers up to 4 years of wire-free operation, so you can place the sensor anywhere. Where an outlet is nearby, the USB-C port provides continuous, uninterrupted power — no trade-offs required.

Connect with external sensors via binary contact

The built-in 2.5mm input connects external probes, float switches, or dry-contact alarm outputs. Monitor hard-to-reach spots inside cabinets, behind appliances, or under water heaters where the sensor body cannot sit directly.

Name Water Sensor 8 Product Dimensions 70 x 18 x 19 mm Z-Wave Chip Series 800 Z-Wave Version Z-Wave Plus Range Power supply Battery powered 1×CR14250 battery or 5V USB-C Sensor functions Water (binary input); Temperature (-10°C to 60°C [±1°C]; 14°F to 140°F [±1.8°F] ); Humidity (0-80% RH +-3%); Dewpoint reporting; Mold hazard notification Operating temperature 0°C to 70°C; 32°F to 158°F Battery life ~4 years using 1x CR14250 battery Operating distance Up to 1 mile (open field – with Z-Wave Long Range) Compatibility SmartThings (Smart Home Hub V3), HomeAssistant via Z-Wave, Homey, Hubitat, Z-Wave JSON and more

LEAK DETECTION + CLIMATE MONITORING – Detect water leaks instantly while also monitoring temperature, humidity, and mold risk to protect your home from damage and unhealthy conditions
Z-WAVE LONG RANGE + 800 SERIES – Up to 250% more range in mesh networks and up to 1 mile (line of sight) with Z-Wave Long Range (with compatible hub) for reliable whole-home coverage
WORKS WITH SMARTTHINGS & Z-WAVE HUBS – Compatible with Aeotec Smart Home Hub (V3) for SmartThings, Hubitat, Home Assistant, and more (Z-Wave hub required, sold separately)
DUAL POWER OPTIONS – Use included battery (up to 4-year life) or USB-C for continuous, maintenance-free operation
EXPAND WITH EXTERNAL SENSORS – Built-in 2.5mm input allows connection to dry contact sensors like probes, float switches, or alarm outputs
FLEXIBLE INSTALLATION – Place under sinks, near water heaters, washing machines, or anywhere leaks could occur