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Unlock electricity meter

Before installation

Make sure your electricity meter is unlocked in extended mode so that the stromleser.one can read all values via the D0 optical interface.

Unlock meter in extended mode

There are two ways to unlock your electricity meter, depending on the meter model:

Option 1: With physical button (if available)

If your meter has a physical button, press it to activate extended mode.

Option 2: Via optical interface (PIN entry)

If your meter does not have a physical button, the PIN must be entered via the optical interface.

Electricity meter unlocked in extended mode

PIN entry via optical interface

The PIN can be entered either with a torch or a PIN app.

To activate with a torch, point it at the light sensor/diode for a few seconds.

Each light pulse corresponds to a digit (e.g. 5 pulses = digit 5).

PIN activation with torch

Activate information interface (INF on ON)

Important: INF must be set to ON

Make sure the information interface (INF) is set to ON. If INF is OFF, some values will be displayed as zero and the stromleser.one cannot read all data.

Activate information interface

PIN option on OFF (on some meters)

On some meters, the PIN option must be set to OFF to allow continuous readings.

Next step

After preparation, you can continue with Physical installation.