Device profile · Specifications & compatibility
eufy Security Flood & Freeze Sensor E20
Eufy · Water Leak Sensors · Model T90F0
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- eufy Security Flood & Freeze Sensor E20 lists Sensor Cable; On Device Alert Sound; Water Leak Alerts.
- Check whether the cable is included, the maximum length and the areas it can cover.
Browse more from Eufy or explore all water leak sensors in our catalog.
- Recorded year
- 2025
- Recorded warranty
- ?
- Dimensions
- 70.1 x 27.5 mm
- Weight
- ?
The details that shape your choice
eufy Security Flood & Freeze Sensor E20 Quick Features
Start with these specifications, then check the full details and conditions below.
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From specification to decision
eufy Security Flood & Freeze Sensor E20: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
A sensing cable is listed, offering a way to investigate leak coverage beyond a single point. Check whether the cable is included, the maximum length and the areas it can cover. Includes a 1.2 m (3.9 ft) extension probe, less than 0.5 cm thick, for tight spaces under appliances.
View Sensor Cable details →An on-device audible alert is listed as an additional notification route. Check power requirements and whether the alert works independently of network connectivity. 75 dB buzzer at 10 cm when a leak is detected.
View On Device Alert Sound details →Water-leak alerts are recorded as a supported monitoring event. Verify the notification path and any controller dependency. An alert alone does not close a water valve. Push notifications through the eufy app once the sensor is paired to a HomeBase, plus a 75 dB local buzzer.
View Water Leak Alerts details →
What to consider
Matter is listed as unsupported; check another documented integration if Matter is essential to your setup.
View Matter details →Apple Home support is listed as unavailable; do not assume the device appears directly in Apple Home.
View Apple Home details →Tamper alerts are recorded as unavailable.
View Tamper Alerts details →
Still needs verification
Confirm these details if they matter to your setup.
Questions About eufy Security Flood & Freeze Sensor E20
Does eufy Security Flood & Freeze Sensor E20 support a water-sensing cable?
Yes, according to the listed specifications. Check whether the cable is included, the maximum length and the areas it can cover. Includes a 1.2 m (3.9 ft) extension probe, less than 0.5 cm thick, for tight spaces under appliances.
View Sensor Cable specifications →Does eufy Security Flood & Freeze Sensor E20 sound an alert on the device?
Yes, according to the listed specifications. Check power requirements and whether the alert works independently of network connectivity. 75 dB buzzer at 10 cm when a leak is detected.
View On Device Alert Sound specifications →Does eufy Security Flood & Freeze Sensor E20 report water-leak alerts?
Yes, according to the listed specifications. Verify the notification path and any controller dependency. An alert alone does not close a water valve. Push notifications through the eufy app once the sensor is paired to a HomeBase, plus a 75 dB local buzzer.
View Water Leak Alerts specifications →Does eufy Security Flood & Freeze Sensor E20 support Matter?
No, according to the listed specifications. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.
View Matter specifications →Does eufy Security Flood & Freeze Sensor E20 work with Home Assistant?
Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. Community eufy Security integration for Home Assistant (HACS), which connects the eufy Security account and covers HomeBase sensors.
View Home Assistant specifications →Explore the full picture
eufy Security Flood & Freeze Sensor E20 Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
0 of 28 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →
Included Accessories1 fields
| Sensor Cable | YesDetails & conditionsIncludes a 1.2 m (3.9 ft) extension probe, less than 0.5 cm thick, for tight spaces under appliances. |
|---|
Features3 fields
| On Device Alert Sound | YesDetails & conditions75 dB buzzer at 10 cm when a leak is detected. |
|---|---|
| On Device Alert Light | YesDetails & conditionsLED: blinking blue in pairing, solid blue for 5 seconds on success, red blinks with the buzzer when triggered. |
| Automations | YesDetails & conditionsWorks inside the eufy Security / HomeBase automation set once paired. |
Alerts5 fields
| Water Leak Alerts | YesDetails & conditionsPush notifications through the eufy app once the sensor is paired to a HomeBase, plus a 75 dB local buzzer. |
|---|---|
| Temperature Alerts | No |
| Freeze Temperature Alerts | Yes |
| Low Battery Alerts | YesDetails & conditionsThe LED flashes red every 60 seconds when the CR123A is low. |
| Tamper Alerts | No |
Connectivity7 fields
| 2.4 GHz Wi-Fi | HomeBase requiredDetails & conditionsSub-1G radio to a US HomeBase (Mini v4.0.5.2 or above, HomeBase 2 after 2021, HomeBase 3, or HomeBase Pro). Wi-Fi lives on the HomeBase, not on the sensor. |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | No |
| Z Wave | No |
| Zigbee | No |
| Thread | No |
| Other | No |
Integrations6 fields
| Google Home | No |
|---|---|
| Alexa | NoDetails & conditionsAlexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either |
| Apple Home | No |
| SmartThings | No |
| Home Assistant | YesDetails & conditionsCommunity eufy Security integration for Home Assistant (HACS), which connects the eufy Security account and covers HomeBase sensors. |
| Matter | No |
Power3 fields
| Wired | No |
|---|---|
| Battery Type | CR123A |
| Battery Life | 5 years |
Sensors3 fields
| Water Leak | Yes |
|---|---|
| Temperature | Low TemperaturesDetails & conditionsFreeze alarm below 4 C / 39.2 F, with five alarm thresholds in the app: 32, 33, 35, 37 and 40 F. |
| Tilt | No |
How this device compares
eufy Security Flood & Freeze Sensor E20 vs Other Similar Models
Statistical context from 34 water leak sensors in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
Sensor Cable: 8 of 34 known answers are Yes
Included Accessories: 24% among explicit Yes/No answers; 0 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
On Device Alert Light: 16 of 32 known answers are Yes
Features: 50% among explicit Yes/No answers; 2 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Freeze Temperature Alerts: 18 of 34 known answers are Yes
Alerts: 53% among explicit Yes/No answers; 0 of 34 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
2 of 34 models are from Eufy
Counts water leak sensors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare eufy Security Flood & Freeze Sensor E20 vs Similar Water Leak Sensors
See how eufy Security Flood & Freeze Sensor E20 stacks up against other water leak sensors in this catalog. Compare specifications, compatibility and pricing.
Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.