eufy Flood and Freeze Sensor E20
- Dual Detection for Flooding and Freezing: Monitors for water leaks and freezing temperatures (below 39.2℉ / 4°C) to deliver comprehensive protection.
- Extended Reach with Extension Cable: Includes a 3.9 ft (1.2 m) extension cable with a slim probe (< 0.2 in / 0.5 cm)—perfect for tight spaces under appliances.
- Powerful 75 dB Local Alarm: When a leak is detected, a 75 dB alarm is activated to help quickly locate and identify the issue.
- Long-Lasting 5-Year Battery Life: The 1,400mAh large-capacity CR123A battery lasts longer, so you don't have to replace it frequently.
- Seamless Connection with HomeBase™: Compatible with HomeBase ™ Mini (v4.0.5.2 or above), HomeBase ™ 2 (v3.4.1.2 or above), HomeBase ™ 3 (v3.7.2.6 or above), and HomeBase ™ Pro (v4.1.4.3 or above). Ensure your HomeBase is updated to the latest version for optimal performance.
White$39.99


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- Place sensors near potential leak sources, pipes susceptible to freezing, and areas prone to flooding. Enjoy reliable alerts thanks to a strong HomeBase™ connection reaching up to 656 ft (200 m).

- Designed with IP54-rated water and dust resistance, making it durable and reliable in damp or dusty environments.


Specs
| Features | |
| Communication Range | 656 ft / 200 m (Open Area) |
| Power Supply | CR123A |
| Battery Life | 5 Years |
| Other Features | Supports Flood and Freeze Alarm IP Rating: IP54 Supports External 3.9 ft (1.2 m) Probe Supports Local Alarm |
Products Comparison




FAQ
Does eufy Flood and Freeze Sensor E20 require a connection to HomeBase™? Which HomeBase™ models is it compatible with?
Yes, it needs to be connected to HomeBase™. Ensure your HomeBase™ is running the required version: HomeBase™ Mini (v4.0.5.2 or above); HomeBase™ S280 / HomeBase™ 2 (v3.4.1.2 or above); HomeBase™ S380 / HomeBase™ 3 (v3.7.2.6 or above); HomeBase™ Pro (v4.1.4.3 or above).
How long does the battery last?
Under normal conditions, it can last for 5 years.
Note: Data based on internal lab testing. Actual performance may vary depending on usage conditions.
How does it detect water leaks and freezing?
When the metal at the bottom of the sensor comes into contact with water, it triggers an alarm to help quickly locate the leak. The built-in temperature sensor will trigger a freezing alarm when the ambient temperature drops below the set threshold.
What is the function of the extension cable?
The extension cable comes with a slim probe that can detect water leaks in narrow gaps. When suspended, it will activate the alarm when the water level reaches a certain point.

























