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Connecting the temp & humidity sensor
Can someone please clarify how the temp and humidity sensor is connected to the profilux 4? Does one have to buy the PLM-Humidity-Temp expansion card to use it?
I hope not: I will already be using the two expansion slots for 0-10v ports expansion and level sensor expansion so I have not more expansion slots!
I want to use this sensor to control three ventilation units above the tank.
Thanks.
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