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Cerbo GX temperatur sensors - measurring below zero

Hey All

I have installed a cerbo GX in my boat with a temperature sensor in the fridge. When the frigde starts the temperature decreases, as expected, but it stops at zero regardless that the fridge is way colder and keep on cooling.... voltage reading it 2.73 V. Is there a bug in the cerbo gx which limits it to display measurements below zero. Have anybody experienced similar issues ?

BR

Bo

cerbo gxTemperature Sensortemperature
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A voltage of 2.73 would be 0c. Link.

Place the sensor in the freezer to see if it reads lower?

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