eufy Security Motion Sensor E20, Pet-Friendly Motion Detector, 5-Yr Battery

Price: $39.99
(as of Sep 28, 2026 13:43:14 UTC – Details)

Product description

1 Pet-Friendly Detection

2 Long Battery Life

3 Easy Installation

Expansive Wireless Range

Monitor key areas throughout your home. Enjoy dependable alerts thanks to a strong HomeBase connection reaching up to 656 ft (200 m).

Tamper Protection

Get instant alerts if anyone attempts to remove or disable the sensor, adding an extra layer of protection to your system.

Wide Field of View

The 90° field of view detects motion up to 26 ft away when installed at a height of 6 – 7.5 ft, ensuring comprehensive coverage with fewer sensors.

1 Local Security

2 Smart App Controls

3 Seamless Compatibility

Product Comparison

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Customer Reviews

4.4 out of 5 stars 231

4.4 out of 5 stars 231

4.1 out of 5 stars 78

4.4 out of 5 stars 231

4.5 out of 5 stars 23

4.1 out of 5 stars 7

4.1 out of 5 stars 459

Price

$39.99$39.99

$23.99$23.99

$39.99$39.99

$49.99$49.99

$59.99$59.99

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$132.71$132.71

Application

Intrusion / Burglary

Intrusion / Burglary

Flooding / Freezing

Fire

Intrusion / Burglary

Arming / Disarming Control

Whole-home Security

Detection Technology

Passive Infrared Sensor (PIR)

Magnetic Sensor

Leak Probe and Temp. Sensor

Photoelectric

Sound Detection Technology

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Detection Range

26 ft (8 m)

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25 ft (7.6 m)

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Detection Angle

90°

XYZ Tri-Axis, Dual-Side

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Communication Range

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

656 ft / 200 m (Open Area)

Tamper Protection

Supported

Supported

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Supported

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Power Supply

CR123A

CR123A

CR123A

CR123A

CR123A ×2

Built-In Battery + Adapter

Lithium-Ion

Battery Life

5 Years

5 Years

5 Years

5 Years

2 Years

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Volume

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75 dB

85 dB at 10 feet

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Other Features

Filters Out Pets Under 80 lb

Supports Bypass Mode

IP54 Rated

UL217 10th Edition Standard

Neural chip + AI algorithm

One-Touch SOS Alert

No Monthly Fee

How can I reduce false alarms?

Avoid placing the sensor in direct light, heat sources, windows, or vents, as these may cause false triggers. Don’t aim at stairs or furniture your pets might climb. Mount it above 6 ft (1.8 m), keeping the sensor vertical.

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.

Does eufy Motion 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 has the required version: HomeBase Mini (v4.0.5.2 or above); HomeBase 2 (v3.4.1.2 or above, released after 2021); HomeBase 3 (v3.7.2.6 or above); HomeBase Pro (v4.1.4.3 or above).

What is the recommended installation height and angle?

For best detection, install it at a height of 6 – 7.5 ft (1.8 – 2.3 m). The sensor works best across its field of view—avoid pointing it at doors or paths. Angle it toward the area to monitor.

How can I turn on Pet mode? Are there any limitations?

You can turn Pet Mode on or off in the app. This reduces false alerts for pets under 80 lb (36 kg). However, if pets jump on furniture or stay close together, the sensor may detect them as a single large animal, which can trigger a false alarm.

Requires eufy HomeBase to Operate: HomeBase Mini (v4.0.5.2 or above), HomeBase 2 (v3.4.1.2 or above, released after 2021), HomeBase 3 (v3.7.2.6 or above), or HomeBase Pro (v4.1.4.3 or above) required. Ensure your HomeBase is updated to the latest version for optimal performance.
Pet-Friendly Detection to Reduce False Alarms: Differentiates between humans and pets, reducing false alarms for pets up to 80 lb.
Long-Lasting 5-Year Battery Life: Includes a 1,400mAh CR123A battery for long life and low maintenance.
Easy and Versatile Installation: Mounts effortlessly on walls or corners with simple height setup—no extra adjustment required.
Expansive Wireless Range with HomeBase: Provides a stable connection with HomeBase at open-air distances of up to 656 ft (200 m).
Customers find the security sensor easy to install and set up, with seamless integration and immediate notifications on their phones. They appreciate its functionality and value for money, with one customer noting it’s an inexpensive home security solution. The signal strength receives mixed feedback, with some customers reporting reliable connectivity while others mention weak WiFi radio performance.