Wattwaechter Adapter for Electricity Meters [EMH mMe 4.0]

This design provides a practical adapter for the Wattwächter IR sensor on the EMH mMe 4.0 electricity meter

Without the adapter, the sensor's magnet unfortunately does not adhere to the meter—but with this small helper, it works flawlessly

The adapter is a swift modification of another design that was initially too small

Should the USB-C cable not fit directly, you can easily enlarge the slot using a utility knife or wire cutters

The Wattwächter reads your meter's data and transmits it wirelessly, for instance, to Home Assistant

Depending on the filament, the adapter may fit somewhat tightly

Simply insert the Wattwächter gently into the adapter—and to remove it, simply twist it slightly

Simple, practical, and effective

Credits: @Jack01 (Hans-Jürgen) for a previous adapter version

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Here’s a handy adapter for the Wattwächter IR sensor on the EMH mMe 4.0 power meter Without this adapter, the sensor’s magnet won’t stick properly – but with this little helper, it stays in place just fine!

This adapter is a quick modification of another design that was originally too small If your USB-C cable doesn’t fit perfectly, you can easily widen the slot with a cutter or side cutters

The Wattwächter reads your meter’s data and sends it via WiFi, e.g., to Home Assistant Depending on the filament used, the adapter might be a bit snug

Just press the Wattwächter gently into the adapter – and when you need to remove it, simply twist it out

Simple, practical, and does exactly what it’s supposed to!