[geeks] Level monitoring

[Sridhar Ayengar]

der Mouse wrote:
>> There are Wifi-compatible industrial instrumentation and control
>> devices out there.  It should be possible to rig one to a pressure
>> sensor.
> 
> Yessss...but isn't the pressure basically constant as long as there is
> still some liquid left in the tank?  Or are large propane tanks not
> normally filled to sufficient pressure to have liquid in them?  Or am I
> just wrong about the constant-pressure thing?

It is indeed largely constant-pressure.

However, that will give you manageable notice as to when the tank will 
run out.

Peace...  Sridhar