Before you buy

ZiggyMeter works with a specific class of meters and needs a specific kind of network. Check all four sections below before ordering — an incompatible meter cannot be made to work by configuration.

1. You need an electric meter

ZiggyMeter is not an electric meter. It does not measure power from the lines; it reads data from a meter you already have. You must already have a compatible meter installed.

2. Meter compatibility

Optical interface

Your meter must have an IEC 62056-21 optical interface — usually a round infrared window on the face of the meter, surrounded by a metal ring.

Communication protocol

An optical interface alone is not enough; the meter must also speak a protocol ZiggyMeter understands.

• IEC 62056-21:2002 — all modes supported: A, B, C, D, E.
• DLMS/COSEM — pull mode; three authentication levels: None, Low (password), High (GMAC); activation via mode E or direct communication; encryption supported.

Many manufacturers state compatibility with IEC 62056-21, but that standard covers several modes and implementations. Verify your meter's specification or ask your utility.

WARNING

SML, M-Bus and ANSI C12.18/19 are not supported. A meter that only offers one of these over its optical port will not work.

INFO

To read all DLMS/COSEM data you may need a password or encryption keys from your energy provider. Without them only a limited set of datapoints may be available.

Meters differ in what they expose

Even with a compatible meter, the amount of data available depends on the model. You can generally expect basic values such as energy delivered from the grid. Other parameters — maximum voltage, per-phase current, reactive power — depend on the meter's capabilities and on how the utility configured it.

3. Network requirements

Wi-Fi

The device supports 2.4 GHz networks only. 5 GHz and 6 GHz networks are not supported.

Zigbee

You need a Zigbee coordinator (hub or USB adapter). ZiggyMeter operates as a Zigbee End Device — it is not a router or a coordinator.

Make sure your gateway allows third-party devices to join, not only the vendor's own products.

4. Software and integration

To visualise and analyse the data you need compatible software or a smart home platform.

For Zigbee users

ZiggyMeter exposes the standard Metering (0x0702) and Electrical Measurement (0x0B04) clusters from ZCL v8. There are no manufacturer-specific clusters, so most integrations work out of the box.

Note that a platform may still ignore attributes the device updates correctly — support varies by integration.

For Wi-Fi users

• Home Assistant — native integration, pushed over the Home Assistant REST API.
• ZiggyMeter web interface — live data directly in your browser, no other software.
• Custom integration — build your own against the REST API.

Quick checklist

Requirement	Yes / No
Meter has a round IEC 62056-21 optical port
Meter speaks IEC 62056-21:2002 or DLMS/COSEM
2.4 GHz Wi-Fi reaches the meter, or you have a Zigbee coordinator
You have somewhere to send the data (Home Assistant, Zigbee2MQTT, own software)
Mains socket near the meter, or you accept battery operation with less frequent readings

If all five are true, continue to Get started.