"Andy Hall" wrote in message
...
On 2006-07-26 10:06:04 +0100, "Andrew Mawson"
said:



Yes, and I use a simple RS transducer to give me water rate usage,
though that has to have a 'divide by 100' circuit in series due to
the
rapid rate of revolution.



The software (which I wrote) does simple
zone control on my central heating, and also has provision to
monitor
gas, but I've never found a suitable sensor.

AWEM

OK. Do you remember which one?

RS part number 257-133 - amazingly still available at about 20 squid

AWEM