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WattWächter Documentation

Welcome to the official documentation of the WattWächter product family — smart IR reading devices for your electricity meter. Real-time consumption data locally on your home network, via MQTT, or through the cloud directly into your smart home system.

Products

  •   WattWächter Plus


    IR reading head with WiFi, Bluetooth, cloud connection, and app. Web UI, Modbus TCP, and Home Assistant integration — all included.

    Open documentation

  •   WattWächter WiFi/USB


    Compact reading adapter with USB interface, Tasmota firmware, and ThingSpeak / KNX integration.

    Open documentation

  •   WattWächter TTL


    Reading module with TTL interface for developers and custom hardware projects.

    Open documentation

Don't have a WattWächter yet?

All products and accessories are available directly from the manufacturer in our official shop — ready to ship.

  Visit the WattWächter shop