A compact home security sensor that registers opened and closed doors or windows and links to a HomeBase for alerts and alarm activation, the eufy Security Entry Sensor suits straightforward monitoring needs. Peace of mind arrives with low-maintenance operation and discreet installation. Is the requirement for a HomeBase S280 or S380 acceptable for your setup?
⚡ At a Glance
- • Detection Reliability: Detects opened and closed doors and windows reliably when paired with a HomeBase
- • Best for: Homeowners who want simple, unobtrusive contact monitoring integrated into an eufy system
- • Not ideal for: Properties without an eufy HomeBase S280 or S380 or for outdoor installations
Compact magnetic contact sensor reports open and closed states and triggers alerts via an eufy HomeBase. Designed for indoor use and requires HomeBase S280 or S380 to operate.
Long monitoring between battery changes - Thanks to 2-year battery life
A single CR123A battery supplies roughly 800 days of monitoring according to the manufacturer, reducing the need for frequent battery swaps. Replacement battery type is included in the box.
Extended battery life cuts maintenance, so regular checks are minimal. Ideal for users wanting reliable, low-effort coverage.
Rapid intrusion alerts - With 100-decibel siren and smartphone notifications
Siren protection can be enabled to trigger a 100-decibel alarm on the linked HomeBase when forced entry is detected, and an alert is sent to a paired smartphone.
Loud siren action acts as an audible deterrent while phone alerts notify you remotely. Useful for quick response and reducing unattended break-in risk.
Flexible notification previews and privacy options - With optional cloud thumbnail previews
Push notifications that include thumbnail previews require thumbnail images to be temporarily stored in the cloud, while standard alerts are sent without thumbnails.
Choose richer notifications with thumbnails or keep notifications minimal for greater local privacy. The option helps balance convenience against temporary cloud storage.
✨ The 4 Key Reasons for eufy Security Entry Sensor
- Easy installation - Peel-and-stick or screw mounting, ready within minutes for most doors and windows
- Included accessories - CR123A battery, magnet and screws supplied for immediate setup
- Compact footprint - Low-profile sensor fits discreetly on most door and window frames
- App-friendly integration - Pairs with eufy app for centralised control of devices
📋 Technical Details at a Glance
- Category: Tools
- Battery: CR123A (included)
- Battery life: Around 800 days (one battery)
- Compatibility: Requires eufy HomeBase S280 or HomeBase S380
- Intended use: Indoor use only
❓ Frequently Asked Questions
Q: Does the sensor work without a hub?
A: No, the sensor requires an eufy Security HomeBase S280 or HomeBase S380 to operate and to trigger alarms or send alerts.
Q: Is the sensor suitable for outdoor use?
A: No, the sensor is intended for indoor use only, as stated by the manufacturer.
Q: How long does the battery last and is a battery included?
A: One CR123A battery is included, and a single battery provides about 800 days of monitoring, equal to roughly two years.
🏆 Our Verdict
The eufy Security Entry Sensor is suitable for homeowners who already use or plan to use an eufy HomeBase and want reliable door and window monitoring. Compact design, long battery life and the ability to trigger a 100-decibel HomeBase siren, plus configurable alert previews, make it a practical security add-on. Low maintenance and included accessories deliver clear long-term value for routine home monitoring.
