Device profile · Specifications & compatibility
Eufy Entry Sensor E20
Eufy · Door & Window Sensors · Model T90E0121
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- Eufy Entry Sensor E20 lists Tamper Alerts; Home Assistant; Battery Life: 5 years.
- Check the event that triggers the alert and how the notification reaches the controller.
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- Recorded year
- 2026
- Recorded warranty
- 1 year
- Weight
- ?
The details that shape your choice
Eufy Entry 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 Entry Sensor E20: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
Tamper alerts are recorded as an additional monitoring event. Check the event that triggers the alert and how the notification reaches the controller. eufy lists Tamper Protection as supported.
View Tamper Alerts details →A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities. The community eufy-security-client integration (installed through HACS) lists this exact model (T90E0, Entry Sensor E20).
View Home Assistant 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 →Temperature alerts are recorded as unavailable.
View Temperature Alerts details →
Still needs verification
Confirm these details if they matter to your setup.
Questions About Eufy Entry Sensor E20
Does Eufy Entry Sensor E20 report tamper alerts?
Yes, according to the listed specifications. Check the event that triggers the alert and how the notification reaches the controller. eufy lists Tamper Protection as supported.
View Tamper Alerts specifications →Does Eufy Entry Sensor E20 support Thread connectivity?
No, according to the listed specifications. Thread connectivity alone does not establish Matter support or a border-router role. Check those requirements separately.
View Thread specifications →Does Eufy Entry 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 Entry 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. The community eufy-security-client integration (installed through HACS) lists this exact model (T90E0, Entry Sensor E20).
View Home Assistant specifications →Does Eufy Entry Sensor E20 work with Apple Home?
No, according to the listed specifications. Check the model, firmware, exposed controls and any additional hardware requirements.
View Apple Home specifications →Explore the full picture
Eufy Entry Sensor E20 Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
2 of 30 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 →
Alerts5 fields
| Door Window Alerts | YesManufacturer sourceOpening a door or window can trigger an alert. Eufy Entry Sensor E20 manufacturer product page →
Battery life depends on usage. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionsSends open/close alerts and can trigger HomeBase chimes, eufy camera recordings and automations when a door or window opens. |
|---|---|
| Motion Alerts | No |
| Temperature Alerts | No |
| Tamper Alerts | YesDetails & conditionseufy lists Tamper Protection as supported. |
| Low Battery Alerts | Not recorded |
Connectivity7 fields
| 2.4 GHz Wi-Fi | HomeBase requiredDetails & conditionsLinks wirelessly to a US version of the eufy HomeBase (Mini, 2, 3 or Pro), which provides the WiFi connection. Open-air range to the HomeBase is up to 656 ft (200 m). |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | No |
| Z Wave | No |
| Zigbee | No |
| Thread | No |
| Other | No |
Features5 fields
| Minimum Detection Distance | 2 cm |
|---|---|
| Sensitivity | Not recorded |
| Automations | YesDetails & conditionsCreate automation rules in the eufy app (v6.0.00 or above) to activate eufy cameras or lights when the sensor triggers. |
| History Records | Not recorded |
| Ota | Not recorded |
Integrations6 fields
| Google Home | No |
|---|---|
| Alexa | NoDetails & conditionsThe sensor is a HomeBase accessory: the eufy Security Alexa skill exposes cameras, doorbells, locks and arming, not the individual HomeBase sensors. |
| Apple Home | No |
| SmartThings | No |
| Home Assistant | YesDetails & conditionsThe community eufy-security-client integration (installed through HACS) lists this exact model (T90E0, Entry Sensor E20). |
| Matter | No |
Power2 fields
| Battery Type | CR123A |
|---|---|
| Battery Life | 5 yearsManufacturer sourceThe advertised battery life is up to five years. Eufy Entry Sensor E20 manufacturer product page →
Battery life depends on usage. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditionseufy rates the single CR123A battery at up to 5 years of use. |
Sensors5 fields
| Door Window | YesDetails & conditionsMagnetic contact sensor with dual-side detection: the magnet can sit on the left or right of the main unit, within about 0.8 inch (2 cm). |
|---|---|
| Light | No |
| Motion | No |
| Occupancy | No |
| Temperature | No |
How this device compares
Eufy Entry Sensor E20 vs Other Similar Models
Statistical context from 28 door & window sensors in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
Home Assistant: 25 of 26 known answers are Yes
Integrations: 96% among explicit Yes/No answers; 2 of 28 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Door Window: 28 of 28 known answers are Yes
Sensors: 100% among explicit Yes/No answers; 0 of 28 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
2 of 28 models are from Eufy
Counts door & window sensors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare Eufy Entry Sensor E20 vs Similar Door & Window Sensors
See how Eufy Entry Sensor E20 stacks up against other door & window 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.