Shelly BLU Motion ZB – Smart Motion & Light Sensor

Make everyday spaces smarter with the Shelly BLU Motion ZB, a compact wireless sensor designed to detect movement and monitor ambient light. Whether you’re automating hallway lighting, improving awareness around entry points or creating practical garage and outdoor-area alerts, this sensor provides a flexible way to introduce motion-based automation without running cables.

The Shelly BLU Motion ZB combines PIR motion detection with a built-in LUX light sensor, allowing automations to respond not only to movement but also to the surrounding brightness. This makes it particularly useful for scenarios where you only want an automation to activate when movement occurs in darker conditions.

Its compact, battery-powered design means there is no need to connect the sensor to mains power. Simply position it where detection is required and use the supplied double-sided adhesive for convenient wall or ceiling installation.

For users building a larger smart-home or smart-building ecosystem, the sensor supports Zigbee 3.0 via compatible hubs and Bluetooth via BTHome, providing flexibility when integrating it into an existing setup.

Key Features & Business-Class Highlights

Dual Zigbee & Bluetooth Connectivity

The Shelly BLU Motion ZB supports Zigbee 3.0 through compatible hubs as well as Bluetooth through BTHome. This gives users flexibility when incorporating the sensor into their smart-home or automation environment.

Please note that a compatible Bluetooth or Zigbee gateway is required for automations and app-based control. The sensor itself is designed as part of a broader connected ecosystem rather than as a standalone Wi-Fi device.

Reliable PIR Motion Detection

The built-in PIR sensor detects human movement and can be configured with adjustable motion sensitivity. This makes it possible to tailor detection behaviour to different environments.

For example, a hallway may require reliable detection as someone walks past, while another location may benefit from different sensitivity settings depending on the surrounding environment.

Motion detection can be used to trigger compatible smart devices and scenes, allowing the sensor to become an automatic input for lighting, notifications and other connected actions.

Built-In LUX Light Sensor

The integrated LUX sensor measures ambient brightness and supports configurable brightness levels including dark, twilight and bright.

This is particularly useful when creating conditional automations. Instead of switching lights on every time movement is detected, an automation can be configured to respond differently depending on the amount of available light.

For example, movement detected in a hallway during daylight hours doesn’t necessarily need to activate lighting, while movement late at night could trigger a softer lighting scene.

Long Battery Life

The Shelly BLU Motion ZB uses a CR2477 battery, supplied with the sensor, and offers a battery life of up to 5 years.

Long battery life is particularly useful for sensors installed in locations where regular maintenance would be inconvenient. Once positioned on a wall or ceiling, the sensor can operate wirelessly without requiring a power cable.

Actual battery life will depend on configuration, usage and operating conditions.

Wire-Free Installation

Installation is straightforward thanks to the sensor’s compact, wireless design and included double-sided adhesive.

This allows it to be positioned on suitable walls or ceilings without the need to drill holes or run power cables. The ability to reposition the sensor also makes it useful when experimenting with different automation layouts.

Motion-Based Alerts

Motion detection can be incorporated into notification-based automations. When movement occurs in a configured area, compatible smart-home systems can respond with alerts or other actions.

This can be useful for entryways, garages, transitional areas and other spaces where movement awareness is desirable.

Configurable LED Indication

The sensor includes configurable LED indication, allowing users to enable or disable visual feedback according to their preferences.

This provides a useful option during setup while allowing the visual indicator to be configured according to the desired installation environment.

Beacon Mode

In beacon mode, the sensor provides continuous status updates every 30 seconds.

This provides an additional operating mode for applications where regular status information is required within the supported Bluetooth ecosystem.

Practical Smart-Home Applications

Hallway Motion Lighting

Dark hallways and transitional areas are ideal locations for the Shelly BLU Motion ZB.

Position the sensor in a hallway and combine it with compatible Shelly smart switches or bulbs through the Shelly Smart Control ecosystem. Movement can then trigger lighting automatically, with the LUX sensor helping determine whether the surrounding area is sufficiently dark.

This can provide convenient illumination when moving between rooms at night without requiring someone to manually operate a light switch.

Entryway Awareness

Install the sensor near a front or back entrance to create an automated response when movement is detected.

For example, movement during low-light conditions could trigger compatible lighting or a notification. This can make entry areas more convenient to navigate while providing an additional layer of awareness around movement in the area.

Garage & Backyard Reminders

Garages and backyard areas can become overlooked after dark. A Shelly BLU Motion ZB can be positioned in a suitable location and combined with compatible smart devices and notifications.

An automation can be configured to respond when movement continues in low-light conditions, helping draw attention to activity that may require checking before the property is secured for the evening.

Flexible Smart Automation

The real value of the Shelly BLU Motion ZB comes from using it as an automation trigger rather than simply as a standalone motion detector.

Movement, ambient light and configurable sensitivity provide multiple inputs for creating practical scenes. Users can therefore build automations around how a space is actually used.

For example, a simple motion sensor might turn a light on whenever movement is detected. By incorporating light-level information, the automation can instead be designed to activate the light only when the area is dark enough to require illumination.

For homeowners and smart-building users, this can help make automation feel more natural rather than simply adding more automated devices.

You can also explore other [Shelly smart home products](brand link) or browse our [Smart Home & Automation category](category link) to expand your connected setup.

For product documentation, configuration information and compatibility resources, visit the [official Shelly support page](official vendor support page).

Why Choose the Shelly BLU Motion ZB?

The sensor is well suited to users looking for a small, wireless and low-maintenance motion sensor that can become part of a wider smart automation system.

Its combination of PIR detection and ambient light sensing gives it more flexibility than a basic motion-only sensor. Zigbee 3.0 and Bluetooth connectivity provide integration options, while the CR2477 battery and adhesive mounting make installation convenient.

It is also a practical option when running a new power cable would be unnecessary, inconvenient or visually undesirable.

For South African homes, apartments, offices, guesthouses and other properties, wireless sensors can be particularly useful when adding automation to an existing building without undertaking extensive electrical work. As with any smart-home component, however, compatibility with the required gateway and automation ecosystem should be checked before purchase.

Pros and Cons

Pros

• Wireless, compact design makes installation simple.
• Zigbee 3.0 and Bluetooth connectivity provide flexible integration options.
• PIR motion detection supports practical movement-based automations.
• Adjustable motion sensitivity allows detection to be configured for different environments.
• Built-in LUX sensor enables brightness-aware automations.
• Up to 5 years of battery life from a CR2477 battery under suitable operating conditions.
• Double-sided adhesive mounting supports convenient wall or ceiling installation.
• Useful for hallways, entrances, garages and other areas requiring automated responses.
• Configurable LED indication provides control over visual feedback.

Cons

• Requires a compatible Bluetooth or Zigbee gateway for automations and app control.
• Battery life varies according to usage, settings and environmental conditions.
• Bluetooth/Zigbee compatibility should be confirmed with the user’s existing smart-home ecosystem.
• The sensor is designed primarily as an automation trigger, rather than a standalone security system.
• Adhesive mounting depends on the suitability and condition of the installation surface.

Complete Technical Specifications