Cozify HAN

Cozify HAN is a Finnish Key Flag product designed to bring real-time data through the electricity meter’s RJ12 HAN/P1 port to the local network, the cloud, and smart systems. The device is specifically designed for Nordic conditions and for easy self-installation.

Accurate, phase-specific measurement

Cozify HAN reads the electricity meter’s HAN/P1 interface and provides real-time measurement data directly from the power network:

• instantaneous power (W / kW)
• voltage (V)
• current (A)
• cumulative energy consumption (kWh)

All data is available on a per-phase basis, enabling precise monitoring, load management, and automations.

Built-in connectivity for automation and integrations

Cozify HAN supports a wide range of connection methods:

• Ethernet (RJ45) and WiFi connectivity
• option to use an RP-SMA external antenna for improved signal coverage
• built-in HTTP OpenAPI
• MQTT (currently via beta program for both B2B and consumers)
• Modbus (TCP)

Thanks to these, Cozify HAN is well suited for B2B integrations, energy optimization, and smart load management.

Access Cozify OPEN API documentation here

Designed for Nordic conditions

The device operates reliably in demanding environments and withstands temperatures from –40 °C to +60 °C, matching the IP20 rating of the electricity meter. OTA firmware updates ensure continuous development, security, and access to the latest features.

Easy to use with a mobile app

Cozify HAN is used with an Android and iOS app, which lets you view in real time the consumption and production data reported by the electricity meter. It gives you a clear understanding of how much energy different devices consume and what that actually costs you.

Compatible with the Teltonika WiFi antenna

Cozify HAN is compatible with the Teltonika WiFi antenna.

Read more:

Cozify HAN
Cozify HAN and Home Assistant
Cozify HAN and Shelly
Cozify HAN integrated into the Shelly App