eufy Security Motion Sensor E20 Pet-Friendly, 5-Year

The eufy Motion Sensor E20 is a compact, pet-aware motion sensor that reduces false alarms, runs up to five years on its included CR123A battery, and pairs with eufy HomeBase systems for reliable wireless coverage.

The E20 is designed to add intelligent motion detection to your eufy home security setup. It requires a compatible eufy HomeBase (Mini, 2, 3, or Pro) and communicates wirelessly to extend sensing coverage without frequent battery changes. The unit focuses on distinguishing human movement from pets and installs quickly on walls or corners for flexible placement.

How does the E20 prevent false alarms from pets?

The E20 uses detection logic tuned to ignore typical pet movements while still recognizing human-sized motion. That lowers unwanted alerts when animals under the supported weight move through the sensor’s field. You can rely on fewer nuisance notifications while maintaining attention to real events.

• Pet-aware sensing calibrated for pets up to about 80 lb.
• Optimized sensitivity to reduce triggers from small pets and toys.
• Works in tandem with HomeBase processing for improved accuracy.

What installation and placement options are available?

Install the E20 on a flat wall or in a corner using the included mount; the design requires minimal adjustment after positioning. Height setup is simple — mount at the recommended level and the sensor’s detection pattern covers typical entryways and living spaces. No special wiring is needed, so you can relocate the unit as your needs change.

• Wall or corner mounting with straightforward bracket.
• Quick setup with standard mounting hardware; no tools beyond a screwdriver for most installs.
• Compact footprint to blend with indoor décor and avoid obstruction.

What compatibility and connectivity should I expect?

The E20 requires a supported eufy HomeBase model to operate: HomeBase Mini, 2, 3, or Pro — each with specific firmware minimums. Once paired, it maintains stable open-air wireless range to HomeBase, suitable for typical-sized homes and multi-room setups. Keep your HomeBase firmware current for best performance and feature compatibility.

• Compatible with HomeBase Mini (v4.0.5.2+), HomeBase 2 (v3.4.1.2+), HomeBase 3 (v3.7.2.6+), HomeBase Pro (v4.1.4.3+).
• Open-air wireless range up to approximately 656 ft (200 m) to HomeBase.
• Firmware updates recommended to ensure secure, reliable operation.

How long does the battery last and what maintenance is needed?

The E20 ships with a CR123A 1,400mAh battery designed to power the sensor for up to five years under typical usage, minimizing upkeep. When battery replacement is eventually required, the cell is user-replaceable to restore operation quickly. Routine checks in the eufy app will show battery status so you can plan replacements well before the sensor stops functioning.

• Includes a 1,400mAh CR123A battery with up to five years estimated life.
• User-replaceable cell for fast field servicing when needed.
• Battery level monitoring via the eufy Home app for proactive maintenance.

Who is this for? The eufy Motion Sensor E20 suits homeowners and renters using a compatible eufy HomeBase who want low-maintenance, pet-aware motion detection. It’s a good fit for families with medium-to-large pets, people wanting discreet, wireless sensors that are easy to mount, and anyone seeking long battery life and extended wireless range within an existing eufy security ecosystem.