Your electrical installation consumes, produces and recharges, yet it remains a black box. The SEM-4-1-00 accurately measures each circuit and sends the data in real time to your Zigbee gateway.
The problem: invisible electricity consumption
In most residential and commercial installations, there is no way of knowing in real time how much each circuit consumes: heating, mechanical ventilation, EV charging point, solar panels. Without accurate measurement, no optimisation is possible and the energy bill remains opaque.
The NodOn Zigbee Smart Energy Monitor solves this problem at the source, directly in your consumer unit, without replacing any equipment.
The SEM-4-1-00: a precision meter in your consumer unit
Ultra-compact (46.8 × 17.8 × 21.3 mm), the meter installs directly in your consumer unit and measures the consumption (or production) of an electrical circuit with 1% accuracy. It sends the data in real time to your Zigbee gateway or BMS.
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Comprehensive measurement
Current, voltage, active power, cumulative energy and more, up to 63 A per circuit
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Bidirectional measurement
Measures both consumption and export to the grid: ideal for solar installations
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±1% accuracy
Class 1.0 according to IEC 61557-12: reliable data to drive your automations
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Ultra-compact profile
The module fits discreetly into any consumer unit
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Installation: in the consumer unit
The SEM-4-1-00 installs directly in the consumer unit, on the live wire of the circuit to be monitored. It is self-powered via the L and N wires, with no additional wiring. Depending on how your consumer unit is configured, two installation diagrams are possible:
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Diagram A
Direct downstream circuit
The meter is installed downstream of the circuit breaker, directly on the circuit to be monitored. It measures the energy flowing in the direction of the arrow printed on the housing.
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Diagram B
Production measurement
For solar installations or any energy source exporting to the grid, the meter measures production flows.
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Setup in 3 steps
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1
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Electrical installation
Switch off the power at the consumer unit. Install the SEM-4-1-00 on the live wire to be measured, then connect the L and N wires: the meter powers itself. Restore the power: the LED lights up solid if everything is correct.
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2
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Adding it to your Zigbee network
Enable pairing mode on your Zigbee gateway (Home Assistant, Jeedom, Zigbee2MQTT, Homey…) or BMS. Briefly press the meter's pairing button until the LED flashes rapidly. Once pairing succeeds, the LED stays solid.
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3
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Monitoring and automations
The meter reports instantaneous power, cumulative energy, current and voltage in real time to your home automation interface. You can create dashboards, threshold alerts or automations based on the measured consumption.
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What you can monitor and automate
| ☀️ Tracking production and consumption in a photovoltaic installation | 🏢 Allocating energy costs by zone in a shared building (coworking space, block of flats) |
| 🚗 Smart control of electric vehicle charging based on grid availability | 🔔 Alerts when a consumption threshold is exceeded or a piece of equipment behaves abnormally |
The product
The SEM-4-1-00 installs on its own on any 1P+N circuit in your consumer unit and communicates directly with your Zigbee gateway or BMS.
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Meter
SEM-4-1-00
Zigbee Smart Energy Monitor
View product →
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Key specifications
Measurement: 50 mA – 63 A
Accuracy: ±1% (Class 1.0)
Power supply: 110-240 V AC, self-powered
Protocol: Zigbee 3.0
Dimensions: 46.8 mm (H) × 17.8 mm (W) × 21.3 mm (D)
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