Sonoff MINI-ZB1GSP (MINI ONE PM) Zigbee Smart Switch

Description

Sonoff MINI ONE PM Zigbee Smart Switch with Power Monitoring | MINI-ZB1GSP

Take smarter control of your lights and appliances with the Sonoff MINI-ZB1GSP, also known as the MINI ONE PM is a compact Zigbee 3.0 smart switch with built-in power and energy monitoring.

Designed to fit neatly behind compatible wall switches or inside junction boxes, this powerful single-channel relay combines up to 16A switching, detailed electricity monitoring, advanced safety protection and Zigbee mesh network expansion in one compact device.

Whether you want to automate a light, monitor an appliance, track electricity usage or build smarter energy automations in Home Assistant, the Sonoff MINI-ZB1GSP provides the flexibility and insight you need.

Why Choose the Sonoff MINI-ZB1GSP?

⚡ 16A Smart Switching

Control compatible lighting circuits and appliances remotely while retaining convenient physical control through an external wall switch.

With support for loads of up to 16A resistive, the MINI-ZB1GSP is suitable for a wide range of smart home applications where a compact, high-capacity Zigbee relay is required.

Use it for applications such as:

• Lights and lighting circuits
• Fans
• Pumps
• Selected heaters
• Coffee machines
• Kettles
• Other compatible appliances and electrical loads

Always ensure that the connected load and installation comply with the device’s electrical specifications and local wiring regulations.

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📊 Real-Time Power & Energy Monitoring

Go beyond simple on/off control.

The built-in energy monitoring functionality allows you to track electrical activity and better understand how your connected devices consume power.

Monitor data such as:

• Voltage
• Current
• Real-time power
• Energy consumption
• Daily energy usage
• Monthly energy usage
• Total accumulated energy

View usage trends and historical information through the compatible smart home ecosystem to identify energy-hungry appliances and make smarter decisions about electricity consumption.

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🔄 Bidirectional Energy Metering

The MINI ONE PM supports bidirectional energy monitoring, making it useful for applications where energy may flow in either direction.

This capability can be particularly useful when monitoring compatible renewable or energy-generation systems, allowing you to track both consumption and generated energy where supported by the installation and connected platform.

This adds another layer of flexibility beyond traditional smart switches with basic one-way energy monitoring.

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💰 Smarter Energy Cost Tracking

Make your energy data more meaningful by using supported electricity pricing and tariff tools.

Configure electricity rates and, where supported, time-based pricing to better estimate the cost of running connected equipment.

This can help you:

• Identify expensive appliances
• Compare energy usage at different times
• Understand running costs
• Optimise appliance schedules
• Make better energy-saving decisions

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🔍 Smart Load Detection

The MINI-ZB1GSP can help identify changes in appliance power consumption.

This opens the door to useful automations and notifications based on the behaviour of connected devices.

For example, you may be able to create notifications or automations when a compatible appliance completes its operating cycle based on changes in power consumption.

Potential applications include:

• Coffee machines
• Kettles
• Washing machines
• Dishwashers
• Other appliances with identifiable power patterns

This allows your smart home to respond to what an appliance is actually doing — not simply whether the switch is turned on.

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📡 Zigbee 3.0 Router Function

Because the MINI ONE PM is mains-powered, it can also act as a Zigbee router, helping strengthen and extend your Zigbee mesh network.

Instead of simply connecting to your Zigbee coordinator, the device can help relay Zigbee communications between compatible devices.

This can help:

• Improve Zigbee coverage
• Extend your network range
• Improve communication with distant sensors
• Strengthen larger Zigbee installations
• Reduce Zigbee dead spots

It is an excellent choice for users expanding a Home Assistant, Zigbee2MQTT, ZHA or eWeLink Zigbee network.

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🛡️ Advanced Electrical Protection

Protect your connected circuit with configurable safety features.

The MINI-ZB1GSP supports protection functions for conditions such as:

• Overload
• Overcurrent
• Overvoltage
• Undervoltage

Where configured and supported, the device can automatically disconnect the connected load when defined thresholds are exceeded.

This provides an additional layer of protection and makes the MINI ONE PM particularly useful for monitored appliance circuits.

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💡 Keep Your Existing Wall Switch

Upgrade your home without losing traditional manual control.

The MINI ONE PM can be connected to compatible external wall switches, allowing household members to continue using the physical switch while also benefiting from smart control and automation.

Depending on the configuration, supported features include:

• Standard external switch control
• Smart app control
• Timers and schedules
• Inching mode
• Custom power-on behaviour
• Detach Relay mode

Detach Relay mode allows the external switch to act as a smart trigger while keeping the relay state independent — particularly useful when controlling smart bulbs or triggering automations.

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🏠 Built for Smart Home Automation

The Sonoff MINI-ZB1GSP integrates into a Zigbee smart home through a compatible coordinator or gateway.

Use it as part of your wider automation system with compatible platforms such as:

• eWeLink
• Sonoff Zigbee gateways
• Home Assistant
• Zigbee2MQTT
• ZHA
• Amazon Alexa
• Google Home
• Apple Home via compatible Matter bridging solutions

Create automations based on schedules, sensor readings, energy usage or changes in appliance power consumption.

For example:

If the washing machine’s power consumption drops below a chosen level, send a notification that the wash cycle may be complete.

Or:

Automatically switch off a device if its power consumption exceeds your chosen safety threshold.

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📦 Compact Design for Retrofit Installations

Despite its powerful feature set, the MINI ONE PM remains compact enough for many retrofit installations.

With dimensions of approximately 39.5 × 33 × 16.8 mm, it can be installed behind compatible wall switches or inside suitable junction boxes.

For easier installation, a mounting box with sufficient depth and space for wiring is recommended.

A neutral wire is required for operation.

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Ideal For

The Sonoff MINI-ZB1GSP is an excellent choice for:

• Smart lighting circuits
• Appliance automation
• Energy monitoring
• Electricity cost tracking
• Home Assistant energy automations
• Zigbee mesh expansion
• Monitoring appliance operating cycles
• Smart switches where a neutral wire is available
• Retrofit smart home installations

Technical Specifications

A Compact Smart Switch That Does More

The Sonoff MINI ONE PM (MINI-ZB1GSP) is much more than a basic Zigbee relay. It combines 16A smart switching, detailed power monitoring, bidirectional energy tracking, appliance load detection, configurable protection and Zigbee mesh routing in one remarkably compact module.

It is an excellent choice for anyone looking to build a smarter and more energy-aware home — especially users of Home Assistant, Zigbee2MQTT, ZHA and the Sonoff Zigbee ecosystem.

Note: A compatible Zigbee coordinator or gateway is required. A neutral wire is required for installation. Installation should be carried out in accordance with local electrical regulations, and professional installation is recommended where appropriate.