RayL12 Wrote in message:
On 07/06/2016 2:46 PM, jim wrote:
I
suppose an oil watchman type thing would do the job but they're
£60 minimum, and I don't need wireless comms, would prefer "off"
until "on for level check" to save power/batts.

The 6ft tall c.1200 litre tank is the other side of a wall from
where the gauge reading c/would be done, and it contains
water.

Essentially I want to know when the tank is being over depleted.
It should refill constantly but if there's a supply issue,
measuring (even roughly) the level in the tank is the easiest way
to detect that issue and deal with it promptly before the tank is
emptied.

Being able to check that it is full in the morning /last thing
would be sufficient I suppose...

Any ideas anyone?

TIA



A metering stick on a hollow ball that protrudes from the top?


Mmm, that could have done but the tank is in another part of the
building (hence the "remote"...)
--
Jim K