Temperature in pipe

[Coolen]

I like to close a pipe when the temperature is blow 30 degreed Celsius.
 

So I setup a liquid shutoff with a liquid Pipe Thermo Sensor, but when I look at it, it gives my the temperature if -273.2 degreed Celsius.
But the liquid is about 28 degreed Celsius.

What Am I doing wrong?

[TripleM999]

this have to be on top of a pipe, not beside it.

[Coolen]

OW I connected it with an automation cable to the shutoff. Thank you.

 

Edit: I understand now. The sensor is more then a sensor it is a pipe with a sensor. So it be used as an alternative of a pipe.

 

[Yunru]

No? 

The sensor reads the temperature of the fluid in the pipe it's attached to. You just haven't attached it to a pipe (or a pipe to it). 

[2tallyGr8]

You put the sensor on top of a pipe, and then it reads the temperature of the pipe it is in a tile with.

[Coolen]

If you put it on top of a pipe it is telling not it can only be placed on top of an empty space.

I did it like this now and now it works fine.

 

[Yunru]

Were you trying to place it atop the shutoff?

Because that's the only reason it would be disallowed: if another building is present in that space.

[Coolen]

this happens when I put him on top of a pipe,

And this on an empty space:

 

 

[Yunru]

Ah! It's the dusk caps in the way. Even not fully grown, they take up two spaces.

[Coolen]

Ow I feel realy stupid now, I did not know that plats are in the way of sensors.

[KittenIsAGeek]

I have run into this problem before as well.. I was trying to build an electrolyzer yesterday and was getting frustrated about why it wouldn't click... then I noticed that two spaces above was a very wilted salt vine I hadn't noticed.. Urf.