Sonoff MINI PM – Smart energy meter, Zigbee (MINI-ZB1GP)

The device operates on a single-phase 100–240 V AC electrical system and can transmit measurement data for circuits rated up to 16 A and 3840 W. It measures mains voltage, current, instantaneous power, and consumed energy. It does not include a switching relay, so it cannot switch the power supply of the connected circuit.

Bidirectional energy metering separately records energy drawn from the grid and energy transferred in the opposite direction. In addition to monitoring electrical loads, the module can therefore also be used to track the production of plug-in balcony solar systems and smaller photovoltaic installations. The eWeLink system supports hourly, daily, and monthly reports, energy history, data export, and electricity cost calculations based on fixed or time-based tariffs.

The MINI-ZB1GP uses Zigbee 3.0 communication. As a permanently mains-powered Zigbee router, it can also forward the data traffic of other Zigbee devices within the mesh network. It also features a Turbo Mode that can significantly increase communication range. With a SONOFF Zigbee gateway, it can be integrated into the eWeLink system, while a compatible coordinator enables integration with Home Assistant, Zigbee2MQTT, ZHA, SmartThings, and other platforms. Available measurement data and settings depend on the gateway and integration being used.

About SONOFF

SONOFF manufactures smart home devices, relay modules, energy meters, wall switches, Zigbee sensors, gateways, and control panels. Its product range includes devices using Wi-Fi, Zigbee, and Matter communication.

The manufacturer’s devices are primarily designed for the eWeLink platform. Many SONOFF Zigbee products can also be used with Home Assistant, Zigbee2MQTT, ZHA, SmartThings, and other compatible Zigbee systems.

Key Product Features

• Real-time energy monitoring: Measures instantaneous voltage, current, and power, and totals energy consumption.
• Bidirectional energy metering: Separately records energy drawn from the grid and energy transferred in the opposite direction.
• 16 A measurement range: Suitable for measuring single-phase circuits rated up to 16 A and 3840 W.
• Energy history: The eWeLink app displays historical energy data in hourly, daily, and monthly views.
• Energy data export: Recorded consumption and production data can be exported for further processing.
• Electricity cost calculation: Supports both fixed unit prices and time-based tariffs linked to different periods of the day.
• Appliance operation monitoring: Changes in power consumption can be used to detect the completion of a connected appliance’s operating cycle.
• Maintenance reminder: The system can total operating time above a configured power threshold and send a notification when the specified duration is reached.
• Electrical thresholds: Overcurrent, overload, overvoltage, and undervoltage thresholds can be configured.
• Zigbee router function: The mains-powered module forwards data traffic from other Zigbee devices within the mesh network.
• Turbo Mode: Increased Zigbee transmission power can extend communication range.
• Compact design: The 32 × 29 × 15.9 mm enclosure is designed for concealed indoor installation.

Smart Home Protocols and Platform Compatibility

• Zigbee 3.0: Uses IEEE 802.15.4-based wireless communication. A compatible Zigbee gateway or coordinator is required.
• Zigbee router: The module acts as a network router and forwards data traffic from other Zigbee devices within the mesh network.
• eWeLink: With a compatible SONOFF Zigbee gateway, measurement data, energy history, tariff settings, notifications, and automation conditions are available.
• Home Assistant: Can be connected to a local smart home system through Zigbee2MQTT or ZHA integration.
• Zigbee2MQTT: Supports voltage, current, power, and energy data, bidirectional energy counters, Turbo Mode, and multiple configuration parameters.
• MQTT integration: When Zigbee2MQTT is used, measurement data can be transmitted as MQTT messages. The MQTT connection is managed by the Zigbee2MQTT system.
• ZHA: Can be connected to a Home Assistant ZHA network. Some special settings may require a separate manufacturer-provided device handler or script.
• Samsung SmartThings: Can be used with a compatible SmartThings or Aeotec Zigbee hub. The range of displayed data depends on the installed device handler.
• Amazon Alexa: Can be connected to a compatible Alexa device with a built-in Zigbee hub. Available measurement functions depend on Alexa platform support.
• Google Home: Can be integrated through cloud account linking when used with a SONOFF Zigbee gateway and eWeLink account.
• Matter Bridge: Can be exposed to Matter systems through a compatible SONOFF Matter Bridge. Available functions depend on the bridge and target platform.
• Apple Home: Can be integrated into Apple Home through a compatible Matter Bridge.
• Local operation: When used with Home Assistant and a local Zigbee coordinator, measurement data can be processed without an internet connection.

Smart Features

• Real-time measurement data: The connected system can display voltage, current, instantaneous power, and energy consumption.
• Energy history: The eWeLink app stores and displays up to 180 days of historical data in hourly, daily, and monthly views.
• Data export: Consumption and production data can be exported for further processing.
• Fixed tariff: A uniform electricity price can be configured for cost calculation.
• Time-based tariff: Different electricity rates can be assigned to different periods of the day.
• Cost report: The eWeLink system calculates costs based on measured energy and the configured tariff.
• Work cycle completion detection: A notification can be configured when the connected appliance remains below a specified power threshold for a defined period.
• Maintenance runtime tracking: The system can total the time during which the load’s power consumption remains above a specified value.
• Maintenance reminder: A notification can be sent when the configured accumulated runtime is reached.
• Overcurrent monitoring: Exceeding the configured current threshold can be used as a notification or automation condition.
• Overload monitoring: Exceeding the specified power threshold can trigger an event.
• Voltage monitoring: Lower and upper voltage limits can be configured.
• Automations: Measured values and threshold violations can be used as conditions for controlling other devices.
• Push notifications: The eWeLink app can send notifications when configured electrical thresholds are exceeded.
• Offline data collection: If the Zigbee connection is unavailable, the module stores energy data locally and synchronizes it when the connection is restored.
• Turbo Mode: The Zigbee radio can operate at increased transmission power.
• Status indicator configuration: In supported integrations, the operation of the blue status LED can be configured.
• OTA firmware update: The device can be updated through a compatible Zigbee gateway or coordinator.

Electrical Functions

• Power supply: 100–240 V AC, 50/60 Hz.
• Wiring: Both live and neutral conductors must be connected for operation.
• Number of measured circuits: Suitable for measuring one single-phase circuit.
• Rated current: Up to 16 A.
• Voltage measurement: Measures mains voltage in the 100–240 V range.
• Current measurement: Measures current in the 0–16 A range.
• Power measurement: Measures instantaneous power in the 0–3840 W range.
• Bidirectional energy metering: Energy drawn from the grid and energy transferred in the opposite direction can be counted separately.
• Switching function: The MINI-ZB1GP is a metering module without a switching relay, so it does not interrupt power to the load.
• Switch input: No input is provided for connecting an external wall switch or push button.
• Electrical thresholds: Overcurrent, overload, overvoltage, and undervoltage thresholds can be configured.
• Threshold handling: The device reports abnormal measurement values to the connected system. A separate switching device is required to physically disconnect the load.
• Wire cross-section: 0.75–2.5 mm² solid or stranded copper conductor.

Technical Specifications

• Product version: MINI PM (Zigbee version)
• Product series: MINI Extreme Series Gen5
• Product name: Zigbee Power Meter
• Model: MINI-ZB1GP
• MCU: EFR32MG21
• Ratings: 100–240 V AC, 50/60 Hz, 16 A
• Zigbee: IEEE 802.15.4
• Net weight: 14 g
• Dimensions: 32 × 29 × 15.9 mm
• Colour: White
• Housing material: PC
• Recommended wire cross-section: 18–14 AWG, 0.75–2.5 mm², solid or stranded copper conductors only
• Installation location: Indoor, concealed installation
• Operating temperature: -10 °C to +40 °C
• Operating humidity: 10–90% RH, non-condensing
• Voltage measurement range: 100–240 V
• Current measurement range: 0–16 A
• Power measurement range: 0–3840 W
• Pollution degree: II
• Maximum operating altitude: 2000 m
• Maintenance: The device operating temperature range is -10 °C to +40 °C. Exceeding this range may damage the meter, while prolonged exposure to extreme temperatures may reduce its service life. Storage temperature may range from -30 °C to +70 °C.
• FCC ID: 2APN5-MINIZB1GP
• Certifications: CE, RoHS, FCC

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