NodOn Zigbee Multifunction Relay Switch with Metering Review: An In-Wall Relay That Measures What It Switches
The NodOn Zigbee Multifunction Relay Switch with Metering is a concealed 14A relay that both switches and measures a single AC circuit, adding instant power and cumulative energy readings to loads such as a water heater, a radiator circuit or a socket. Its potential-free output and impulse mode also let it trigger a boiler, garage door, gate or electric latch, while an optional wired switch on the input keeps local control. It is Zigbee 3.0 and hub-dependent, with wide gateway support through Zigbee2MQTT, Home Assistant and SmartThings, and it has no Wi-Fi radio, no Matter and no Apple Home path. For anyone already running a Zigbee home who wants to see what a circuit is costing as well as control it, it is a strong fit.
- Metering a water heater, boiler or radiator circuit
- Home Assistant and Zigbee2MQTT households
- Gates, garage doors and electric latches with pulse mode
- Retrofitting a socket or lighting line behind a switch plate
One relay per circuit you automate.
Buy on Amazon NetherlandsCheck pricePros
- Switches and measures one AC circuit up to 14A and 3000W at 230V AC
- Instantaneous power (W) and cumulative energy (Wh) metering
- Potential-free (dry contact) output for boilers, gates and electric latches
- Impulse mode for garage doors, gates and access control
- Zigbee 3.0 with Home Assistant, Zigbee2MQTT, SmartThings and Alexa support
- Optional wired switch input with automatic monostable or bistable detection
- Over-the-air firmware updates and a configurable power-on behavior
- Compact 44 x 40 x 16.9 mm module that fits a standard flush box
- Integrated zero crossing and under 1W idle consumption
- Backed by a 2-year commercial warranty
Cons
- Needs a Zigbee hub or coordinator; there is no Wi-Fi radio
- No Matter and no Apple Home support
- Energy metering is not available when the relay is wired as a dry contact
- No manual on/off button on the module itself
- Panel installation needs the optional NodOn DIN Rail Box accessory
- The 14A and 3000W contact rating caps heavier loads
Who is the NodOn Zigbee Multifunction Relay Switch with Metering for?
This is an installer-friendly module for anyone who wants to add smart control and energy data to a circuit a regular smart switch cannot handle. Its potential-free output makes it the right tool for equipment that is not a simple light: a gate or garage door operator, an electric strike, a boiler or water heater call, or a socket you want to switch and monitor remotely. Because it is a flush-mount module, it hides behind an existing wall switch or inside a junction box, and with the optional NodOn DIN Rail Box it also fits the electrical panel. It joins a Zigbee 3.0 network, so it suits households standardizing on Zigbee with a coordinator such as Home Assistant, Zigbee2MQTT, SmartThings or an Amazon Echo with a Zigbee hub.
What the NodOn Zigbee Multifunction Relay Switch with Metering offers
The headline is that it switches and measures in the same unit: a potential-free output rated up to 14A and 3000W at 230V AC with integrated zero crossing, plus instantaneous power (W) and cumulative energy (Wh) metering that Zigbee2MQTT exposes as the power and energy properties. That combination is what lets it drive a boiler, water heater, gate or electric latch while telling you what the load consumes. It supports dry and wet contact wiring, an optional wired wall switch on its input with automatic detection of monostable or bistable switches, and an impulse mode that turns a short pulse into a gate, garage-door or latch trigger. It draws under 1W idle, is Zigbee 3.0 certified for interoperability across Zigbee ecosystems, takes over-the-air firmware updates, and offers a configurable power-on behavior so it returns to a chosen state after a power cut. At 44 x 40 x 16.9 mm it slips into a standard flush box, and the commercial warranty is 2 years.
What to know before you buy
This is a Zigbee device without Wi-Fi, so it needs a Zigbee coordinator and will not work on its own. It requires a neutral wire at the installation point, and its 14A and 3000W contact rating is a resistive-load figure that sets the ceiling for what it can switch. Metering comes with one important condition: the measurement is not available when the module is wired as a dry contact, so a potential-free install loses the energy data. It has no Matter and no Apple Home support, so it suits homes already built around Zigbee rather than Apple-first setups, and it reaches Amazon Alexa and Samsung SmartThings for switching, though NodOn notes that the consumption readings are not exported through Alexa. There is no manual on/off button on the module itself, the wall switch on the input is what gives local control, and DIN-rail installation depends on the optional NodOn DIN Rail Box rather than being built in. Plan the impulse mode before pairing a gate or garage door, since switching a motor the wrong way can damage it.
Is the NodOn Zigbee Multifunction Relay Switch with Metering worth it?
For a single hard-to-automate circuit, it packs three things that usually force a bigger purchase: a proper potential-free output, a 14A rating, and built-in energy metering, all in a module small enough to disappear into a flush box. It is the practical pick for water heaters, boilers, radiators, gates, garage doors, electric latches and switched sockets, especially in a home that already runs Zigbee2MQTT or Home Assistant with a Zigbee coordinator. Anyone who instead wants Matter or an Apple Home path, or who plans to wire the relay as a dry contact and never read the meter, should weigh a different module; for local Zigbee control with live consumption data on one circuit, this does the job cleanly.
Frequently asked questions
Does the NodOn Zigbee Multifunction Relay Switch with Metering need a hub?
Yes. It is a Zigbee 3.0 device with no Wi-Fi, so it needs a Zigbee coordinator or hub such as Zigbee2MQTT, Home Assistant, a SmartThings hub or an Echo with a built-in Zigbee hub.
Does it measure energy use?
Yes. It reports instantaneous power in watts and cumulative energy in kilowatt-hours, which Zigbee2MQTT exposes as the power and energy properties. The measurement is not available when the module is wired as a dry contact.
Does it need a neutral wire?
Yes, it is powered from 230V AC with a line and a neutral terminal plus the output contacts, so a neutral wire must be available where it is installed.
Can it control a gate, garage door or electric latch?
Yes. Its potential-free output supports an impulse mode for gates, garage doors and electric latches. Activate the impulse mode before pairing, since driving a motor without it can damage the equipment.
Does it work with Matter or Apple Home?
No. It has no Matter support and no native Apple Home path. It reaches Amazon Alexa and Samsung SmartThings for switching, as well as Home Assistant and Zigbee2MQTT, and only the latter two expose the consumption readings.
What can the relay switch?
Its contact is rated up to 14A and 3000W at 230V AC on resistive loads, covering boilers, water heaters, sockets and lighting, and it also lists capacitive and inductive load types. It can be wired as a dry contact or as a wet contact that passes line voltage to the load.

