The Smart Device Compare comparison

Eufy Security Siren vs Sonoff SNZB-09P Zigbee Indoor Siren

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Eufy Security Siren and Sonoff SNZB-09P Zigbee Indoor Siren

A summary of selected recorded differences between these sirens. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Alexa (integrations): Eufy Security Siren — No (The siren is a HomeBase accessory: it sounds from eufy alarm events and is not published to Alexa as a device of its own); Sonoff SNZB-09P Zigbee Indoor Siren — Yes (Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.).
Google Home (integrations): Eufy Security Siren — No; Sonoff SNZB-09P Zigbee Indoor Siren — Yes (Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.).
SmartThings (integrations): Eufy Security Siren — No; Sonoff SNZB-09P Zigbee Indoor Siren — Yes (Pairs directly to a SmartThings Zigbee hub (Aeotec Smart Home Hub V3) with the SONOFF driver; OTA updates are not available on that path.).
Wired (power): Eufy Security Siren — No; Sonoff SNZB-09P Zigbee Indoor Siren — Yes (Powered over the Type-C interface with a 5V/1A supply.).

Specifications to check side by side

2.4 GHz Wi-Fi (connectivity): Eufy Security Siren — HomeBase required (Sub-1G connection between the alarm and the base. WiFi connection on the base.); Sonoff SNZB-09P Zigbee Indoor Siren — No.
Zigbee (connectivity): Eufy Security Siren — No; Sonoff SNZB-09P Zigbee Indoor Siren — Zigbee Hub required (Zigbee 3.0 (IEEE 802.15.4), up to 100 m in open environments.).
Light Type (light): Eufy Security Siren — No; Sonoff SNZB-09P Zigbee Indoor Siren — Red LED (Red circular light strip on the front, with flashing light alerts that can be enabled independently of the sound.).
Battery Life (power): Eufy Security Siren — 2 years; Sonoff SNZB-09P Zigbee Indoor Siren — 300 days (Over 300 days of operation on the backup battery in silent mode.).

Information still to confirm

2 of 27 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Eufy

Eufy Security Siren

Last updated October 2026

View full device profile

Option 2 · Sonoff

Sonoff SNZB-09P Zigbee Indoor Siren

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

12differences with recorded values for every device

2rows with missing or unspecified information

Consider your setup

Battery Life

Eufy Security Siren2 years
Sonoff SNZB-09P Zigbee Indoor Siren300 days

Compare the stated test conditions. Catalog battery figures alone do not predict runtime in your home.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 27 of 27 rows. “Not recorded” does not mean “No”.

Reading layout

Connectivity

2.4 GHz Wi-Fi

Eufy Security Siren: HomeBase required
Catalog note
Sub-1G connection between the alarm and the base. WiFi connection on the base.
Sonoff SNZB-09P Zigbee Indoor Siren: No

5 GHz Wi-Fi

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Bluetooth

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Other

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Thread

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Z Wave

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Zigbee

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Zigbee Hub required
Catalog note
Zigbee 3.0 (IEEE 802.15.4), up to 100 m in open environments.

Features

Automations

Eufy Security Siren: Yes
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Smart scenes can trigger on alarm, removal, external power loss or the device going offline, and run the siren, the light and push notifications.

Presence Simulation

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Integrations

Alexa

Eufy Security Siren: No
Catalog note
The siren is a HomeBase accessory: it sounds from eufy alarm events and is not published to Alexa as a device of its own
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.

Apple Home

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Google Home

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.

Home Assistant

Eufy Security Siren: Not recorded
Sonoff SNZB-09P Zigbee Indoor Siren: Yes

Matter

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

SmartThings

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Pairs directly to a SmartThings Zigbee hub (Aeotec Smart Home Hub V3) with the SONOFF driver; OTA updates are not available on that path.

Light

Light Level

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Not recorded

Light Type

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Red LED
Catalog note
Red circular light strip on the front, with flashing light alerts that can be enabled independently of the sound.

Power

Battery Life

Eufy Security Siren

2 years

Sonoff SNZB-09P Zigbee Indoor Siren

300 days

Manufacturer source

Backup operation is advertised for up to 300 days in silent mode.

Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page →

Source section: Product description
Model: Sonoff SNZB-09P Zigbee Indoor Siren
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Over 300 days of operation on the backup battery in silent mode.

Battery Type

Eufy Security Siren: 2x CR123
Sonoff SNZB-09P Zigbee Indoor Siren: Built-in
Catalog note
Built-in 600mAh lithium backup battery that recharges automatically when USB power returns.

Solar Charging

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Wired

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Powered over the Type-C interface with a 5V/1A supply.

Sensors

Tamper

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: Yes
Catalog note
Anti-tamper status reports when the siren is removed from its base, and can trigger an automation.

Vibration

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Sound

Sound Duration

Eufy Security Siren: 30 seconds
Sonoff SNZB-09P Zigbee Indoor Siren: 0-15 minutes
Catalog note
Alarm duration is configurable from 1 second to 15 minutes.

Sound Level

Eufy Security Siren

105 dB

Manufacturer source

The stated alarm level is 105 dB.

Eufy Security Siren manufacturer product page →

Source section: Model-specific product page summary
Model: Eufy Security Siren
Region: Europe manufacturer page; other regional variants are not verified by this source
Firmware: Not specified by this source
Checked: 2026-10-04

A HomeBase S380 or S280 is required. Outdoor placement must be sheltered; the source does not specify the sound measurement distance.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

The siren features two volume levels.

Sonoff SNZB-09P Zigbee Indoor Siren

105 dB

Manufacturer source

The advertised maximum alarm level is 105 dB.

Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page →

Source section: Product description
Model: Sonoff SNZB-09P Zigbee Indoor Siren
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Four volume levels, roughly 75dB, 82dB, 93dB and 105dB at 1 m.

Tones

Eufy Security Siren

1 (beep)

Sonoff SNZB-09P Zigbee Indoor Siren

Manufacturer source

Ten alarm tones are available.

Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page →

Source section: Product description
Model: Sonoff SNZB-09P Zigbee Indoor Siren
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Ten alarm sound effects, so different tones can be assigned to different sensors.

Voice Prompts

Eufy Security Siren: No
Sonoff SNZB-09P Zigbee Indoor Siren: No

Specifications for Eufy Security Siren versus Sonoff SNZB-09P Zigbee Indoor Siren
Specification	Eufy Security Siren	Sonoff SNZB-09P Zigbee Indoor Siren
Connectivity
2.4 GHz Wi-Fi	HomeBase required Catalog note Sub-1G connection between the alarm and the base. WiFi connection on the base.	No
5 GHz Wi-Fi	No	No
Bluetooth	No	No
Other	No	No
Thread	No	No
Z Wave	No	No
Zigbee	No	Zigbee Hub required Catalog note Zigbee 3.0 (IEEE 802.15.4), up to 100 m in open environments.
Features
Automations	Yes	Yes Catalog note Smart scenes can trigger on alarm, removal, external power loss or the device going offline, and run the siren, the light and push notifications.
Presence Simulation	No	No
Integrations
Alexa	No Catalog note The siren is a HomeBase accessory: it sounds from eufy alarm events and is not published to Alexa as a device of its own	Yes Catalog note Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.
Apple Home	No	No
Google Home	No	Yes Catalog note Turn the alarm on and off, via the eWeLink cloud-to-cloud integration.
Home Assistant	Not recorded	Yes
Matter	No	No
SmartThings	No	Yes Catalog note Pairs directly to a SmartThings Zigbee hub (Aeotec Smart Home Hub V3) with the SONOFF driver; OTA updates are not available on that path.
Light
Light Level	No	Not recorded
Light Type	No	Red LED Catalog note Red circular light strip on the front, with flashing light alerts that can be enabled independently of the sound.
Power
Battery Life	2 years	300 days Manufacturer source Backup operation is advertised for up to 300 days in silent mode. Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page → Source section Product description Model Sonoff SNZB-09P Zigbee Indoor Siren Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Over 300 days of operation on the backup battery in silent mode.
Battery Type	2x CR123	Built-in Catalog note Built-in 600mAh lithium backup battery that recharges automatically when USB power returns.
Solar Charging	No	No
Wired	No	Yes Catalog note Powered over the Type-C interface with a 5V/1A supply.
Sensors
Tamper	No	Yes Catalog note Anti-tamper status reports when the siren is removed from its base, and can trigger an automation.
Vibration	No	No
Sound
Sound Duration	30 seconds	0-15 minutes Catalog note Alarm duration is configurable from 1 second to 15 minutes.
Sound Level	105 dB Manufacturer source The stated alarm level is 105 dB. Eufy Security Siren manufacturer product page → Source section Model-specific product page summary Model Eufy Security Siren Region Europe manufacturer page; other regional variants are not verified by this source Firmware Not specified by this source Checked 2026-10-04 A HomeBase S380 or S280 is required. Outdoor placement must be sheltered; the source does not specify the sound measurement distance. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note The siren features two volume levels.	105 dB Manufacturer source The advertised maximum alarm level is 105 dB. Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page → Source section Product description Model Sonoff SNZB-09P Zigbee Indoor Siren Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Four volume levels, roughly 75dB, 82dB, 93dB and 105dB at 1 m.
Tones	1 (beep)	10 Manufacturer source Ten alarm tones are available. Sonoff SNZB-09P Zigbee Indoor Siren manufacturer product page → Source section Product description Model Sonoff SNZB-09P Zigbee Indoor Siren Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The battery figure is standby duration, not continuous alarm time. The source does not specify a sound measurement distance. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Ten alarm sound effects, so different tones can be assigned to different sensors.
Voice Prompts	No	No

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology