SONOFF Indoor Siren SNZB-09P

SONOFF Zigbee SenseGuard Indoor Siren (SNZB-09P)

Add powerful audible and visual alerts to your smart home with the SONOFF Zigbee SenseGuard Indoor Siren (SNZB-09P), a compact Zigbee 3.0 siren designed to work alongside compatible sensors, cameras and smart home automations.

Featuring an alarm volume of up to 105dB, four adjustable volume levels and 10 built-in alarm tones, the SNZB-09P can provide different alerts depending on what has happened around your home. Different tones can be assigned to different automation scenarios, helping you distinguish between events such as a door opening, motion being detected or another connected sensor being triggered.

The siren also features a red circular warning light which can operate independently or together with the audible alarm. This allows automations to use sound only, light only, or combined sound and light alerts depending on the situation. SONOFF

Powered through USB-C, the SNZB-09P also includes a built-in 600mAh rechargeable backup battery. If USB power is lost, the siren automatically switches to battery power so it can remain connected. SONOFF states that the backup battery can maintain operation for more than 300 days in silent standby conditions. SONOFF

Using Zigbee 3.0 connectivity, the siren can be combined with compatible door/window sensors, motion sensors, presence sensors and other smart home devices to create a flexible alert and notification system through platforms such as eWeLink and supported Home Assistant configurations.

Key Features

• Zigbee 3.0 smart indoor siren
• Powerful alarm up to 105dB
• Four adjustable volume levels
• 10 built-in alarm tones
• Adjustable alarm duration
• Audible and visual warning system
• Red circular flashing warning light
• Sound-only, light-only or combined alerts
• USB-C 5V power supply
• Built-in 600mAh rechargeable backup battery
• Up to 300 days backup operation in silent standby conditions
• Smart scene and automation support
• Tamper alert support
• Works with compatible Zigbee sensors and cameras
• Compact 81 × 81 × 35mm design
• Wall mounting using screws or adhesive mounting
• Compatible with eWeLink through supported SONOFF Zigbee gateways SONOFF

Practical Applications

Door & Window Alerts

Pair the siren with a compatible Zigbee door or window sensor to trigger an audible or visual alert when a monitored door or window is opened.

Motion Detection Alerts

Combine the siren with a compatible Zigbee motion or presence sensor to create an automation that activates the siren when unexpected movement or occupancy is detected.

Water Leak Alerts

Use the siren alongside a compatible Zigbee water leak sensor to provide an immediate audible warning when water is detected in areas such as kitchens, bathrooms, utility rooms or underneath appliances.

Different Alerts for Different Events

Use the 10 built-in alarm tones to distinguish between different automation triggers. For example, a door sensor could activate one tone while a water leak sensor activates another, making it easier to identify what has triggered the alert. SONOFF

Visual Notifications

Configure the red warning light to provide a visual alert without activating the siren, or combine the flashing light with an audible alarm when a more noticeable warning is required.

Smart Home Notifications

Create eWeLink smart scenes that combine the siren with compatible sensors and other connected devices, allowing your smart home to react automatically when predefined events occur.

Ideal For

• Home awareness and monitoring
• Door and window alerts
• Motion detection automations
• Presence detection automations
• Water leak warnings
• Garages and workshops
• Home offices
• Smart home notifications
• eWeLink smart homes
• SONOFF Zigbee installations
• Veyaxium Core expansion
• Home Assistant users

Compatibility

Compatible with:

• Veyaxium Core
• eWeLink
• SONOFF ZBBridge-P
• SONOFF ZBBridge-U
• SONOFF NSPanel Pro
• SONOFF iHost
• SONOFF ZBDongle-P
• SONOFF ZBDongle-E
• SONOFF Dongle-M
• SONOFF Dongle-PMG24
• SONOFF Dongle-LMG21
• Home Assistant with supported SONOFF Zigbee dongles
• Selected compatible third-party Zigbee 3.0 gateways

SONOFF currently notes that some functionality may depend on the Zigbee gateway or integration being used. Full feature availability should therefore be checked when using the siren outside the SONOFF/eWeLink ecosystem. SONOFF

What’s Included

• 1 x SONOFF Zigbee SenseGuard Indoor Siren (SNZB-09P)
• Mounting Base
• USB-C Power Cable
• Mounting Accessories
• User Documentation

Why Choose the SONOFF Zigbee SenseGuard Indoor Siren?

The SONOFF SNZB-09P adds a dedicated audible and visual response device to your Zigbee smart home, allowing compatible sensors to do more than simply send a notification to your phone. With an alarm of up to 105dB, four volume levels, 10 different tones, configurable light alerts and rechargeable backup power, it can provide different responses for different events around the home.

For Veyaxium Core users, it is also a particularly useful expansion device because it can be combined with additional Zigbee sensors to build more advanced automations for door and window awareness, motion detection, water leaks and other household events.