WoW, you guys are the best !!
So, am looking at getting 8051 Microcontroller, and 2 ADC0808, banging them together. a bit of code and hey presto data logger !!!
I have looked up commercial versions that do the same basic job and the can cost anything from 2000.00 GBP !!! Scarey
I have found a dev board for the 8051 for 22GBP
https://uk.farnell.com/1291450/semiconductors/product.us0?sku=SILICON-LABORATORIES-C8051F005-TB
And the ADC 0808 for 5.48GBP
https://uk.farnell.com/9486674/semiconductors/product.us0?sku=NATIONAL-SEMICONDUCTOR-ADC0808CCN
So with the little extras I will need am looking at the sub 100GBP mark, fantastic !
So I'll get those on order with a few bits of stripboard and report back
That is unless you guys come up with any other ideas !
Sparks
P.S. can't thank you guys enough for putting up with me..