Getting unexpected readings on a humidity logger

What to do if your humidity logger shows unusual readings.

If your humidity logger is showing unusual or unexpected readings, it is likely that the sensor has come into contact with a liquid, which effectively shorts it out. Where the sensor becomes saturated, it is possible for the readings to show 100 or 0% or just above. This file below shows a typical reading if this happens.

Once the sensor has been able to dry out, and provided no residue is left on it, the unit should read correctly once more.

Current Tinytag Plus and View relative humidity data loggers now use a coated RH sensor which offers increased protection against moisture.

When these sensors come into contact with moisture their readings are more stable and they also recover faster when they dry out.

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